Original subtitles

(Mouse)

(This drama is purely fictional and is not associated with...)

(actual people, organizations, locations, or incidents.)

(Filming was in compliance with COVID-19 guidelines...)

(and counseling was provided for child actors.)

(CGI was used in most scenes that include animals.)

Scalpel.

Don't think you've been wronged.

You, at least,

get to live on like this.

(Mouse)

Hey, Bong Yi.

I just sent you a photo.

Can you check if he's the doctor?

Ba Reum, it's him. He's the guy who did your surgery.

How did Han Seo Joon get to operate on my brain?

And why?

(Head Hunter Murder Case)

("You're the One Who Made That Snowman!")

("Bereaved Families Wail Outside the Police Station")

("The Punctured Little Finger, Semiotics")

"F25, 17SEX."

What's this?

(Episode 9)

(Photo)

"F" means female, "M" means male.

The numbers after the letter are...

the age of the victims.

Could the rest indicate the order in which they died?

The order of death.

(6: Joo Mi Hye, 7: Kim Hyun Sik)

Kim Hyun Sik was abducted before Joo Mi Hye though.

"Sex"?

What could that mean?

A punctured little finger.

A dot?

It's between S and E, X.

Could it be an abbreviation?

(Moojin Police Station)

"Serial numbering for animal testing."

"A system to identify tested animals."

"Mice that have been tested on..."

"are left with marks that involve the puncture of ears."

Ear tags or ear punches.

Experiments.

Test subjects.

(Test subjects)

"Subject of experiment"?

"S" as in subject and "EX" as in experiment.

They were test subjects.

Song Soo Jung, female, 25 years old,

and the 17th test subject.

They're test subjects.

Was the finger punctured instead of the ear then?

To people?

What did he experiment on humans?

It's impossible for brain damage...

to make you more sensitive to smell.

Although, there is one way that could happen.

If the olfactory bulb in the frontal lobe is replaced.

A frontal lobe...

- can be replaced? - What on earth...

did he do to the mouse's head?

If you let it live, you'll end up like that rat snake.

Is that what you want?

A nasty brain has been placed in this mouse.

"A nasty brain"?

You seem different. Compared to before, I mean.

Did you spend some time in a psychopath's brain?

What is this feeling?

That's why I've been remembering...

Sung Yo Han's memories.

Don't tell me...

you implanted Sung Yo Han's brain inside me.

Is that what you did?

You figured it out faster than expected...

which reduces the fun.

"Head Hunter."

About that nickname people gave me.

I actually quite like it.

So you took their heads after killing them to...

I even cut open the heads when they were still alive.

Everything was perfect.

Both the killings and my experiments.

I was on the verge of a major breakthrough...

until that young boy...

Die!

Wait. What's going on?

He was arrested for the murder of Woo Jae Pil.

The murder of Woo Jae Pil?

Hey. How could you end up doing this?

You moron. Why?

- You just threw your life away! - Calm down.

- Moo Chi! - Detective...

Hey!

Detective Kang!

Moo Chi...

My life came to this because of that boy.

Don't look at me like that.

I only took...

a few human heads to benefit mankind.

Every achievement requires minor sacrifices.

- Don't you agree? - "Minor sacrifices"?

That's what human life means to you?

Thanks to them,

you were able to survive your injury.

No, it's a lie!

What's going on? Detective Ko killed Woo Jae Pil?

We should talk outside.

He killed Woo Jae Pil to get to Han Seo Joon?

To be incarcerated in the same prison?

The possibility always worried me, but he eventually crossed the line.

That's why...

he kept pushing you away.

He was going to kill Han Seo Joon and become a murderer himself,

so he knew he couldn't...

Actually, he was determined to keep you out of it.

He made the decision...

on the day he was actually going to ask you out.

Your eyes will be bleeding at this rate.

Don't work yourself too hard.

Hey, your nose is bleeding.

You're like a student studying for his exam.

It's been three nights already.

I'll keep watch, so get some shut-eye.

Those sisters were raped and killed with a hammer.

Can you sleep when you think about their parents?

I will catch that louse and lock him up.

Hey. What is this?

What's your problem? Don't go through my things.

You plan to ask Ms. Choi out, don't you?

- No. - Whatever.

Anyone can see it in your eyes when you look at her.

Darn it. Is it obvious?

Very, very much.

When do you plan to do it?

Tomorrow. She's buying me dinner for helping her...

with her research.

I figure this is my chance.

But what if she says no?

To be honest, I'm crazy nervous.

Feel my heart.

Even murderers don't scare the mighty Moo Chi.

Wow. Love is powerful, isn't it?

Isn't her program on today?

No. We're on a stakeout.

Then you don't have to watch it.

(Death row inmate Han Seo Joon)

I have...

found peace in my heart.

I don't have nightmares anymore.

After confessing to the Lord and receiving forgiveness,

I feel completely at peace.

- I sleep well now too. - Hey.

Come... Come to think of it,

this will be recorded by the dash cam.

We'll be disciplined for slacking off.

Right. It's the anniversary of his mother's passing,

so he'll come.

He may be in the area,

so I'll make a lap.

Now,

I pray every day so that the families of my victims...

- can find peace... - "Peace"?

from the pain I've caused.

You sleep well now?

Although...

I'm still living in endless torment...

- He was a world-renown murderer. - and have nightmares every night.

- The Head Hunter... - You low life.

After confessing and asking for forgiveness,

- he has found peace... - Why are you still alive?

- Why won't they execute you? - How will the victim's families...

- be feeling about it? - Darn it.

Did the victims' families find peace as well?

We requested interviews from the victims' families, but...

If the nation won't do it, I will.

- We met Father Ko Moo Won, - I'll kill you myself.

and discovered...

- I'll kill you. - something unexpected.

Father Ko Moo Won, who studied theology at a later age...

submitted a petition requesting Han Seo Joon not be executed.

Forgiveness saved his life.

I'll let you go.

Go.

What?

Run away.

Run away.

Don't do it. Don't kill him.

- Are you insane? - Let go.

Snap out of it. Get it together!

If you get in my way again, I'll kill you first.

You should've fired him.

Why did you take him to the Evidence Managing Team?

Why did you take him to a division that gets issued firearms?

You took him on purpose, right?

You knew he'd be like that,

and you used the poor kid, didn't you?

You wanted him to take revenge...

for your daughter, didn't you?

You freak. Stop it.

Don't take it out on him.

Darn it.

I'm sorry. He never drinks...

But he's upset about Moo Chi...

That poor kid.

(Visitation Questions)

Hello? I think he is in shock.

(30 plus years ago)

Well, it's CP. And the location of the hemorrhage must've been tricky.

But you did great work.

And the patient's current condition is good as well.

I understand she's a patient of Dr. Gary's?

Precisely. And 15 years ago, when she was 5 years old,

she was diagnosed with CP by Dr. Gary.

Well, you're in good hands now. We'll take very good care of you.

If you need anything, anything at all, don't hesitate to ask.

Are you the one reading this book?

Levodopa.

This is a dopamine deficiency supplement.

Who gave you this?

That's strange. Where did you get that?

There was only a man cleaning the rubbish bin.

A cleaner?

I agree, Dr. Planks.

It's extremely excessive and...

Do you know why the professor asked me to do the surgery...

that you were supposed to do?

Your patient Emma.

Nobody thinks she died by medical accident.

You killed her, didn't you?

What do you mean?

Dr. Gary is investigating.

It's not long before the mask you're wearing comes off.

You've noticed.

Was I too careless?

Should I give a real performance then?

You must not want to believe it.

Then why don't you go in person...

and see for yourself?

As you know, this patient was diagnosed...

as cerebral palsy by Dr. Gary at the age of five...

and has lived relying on a wheelchair.

From now on, I will show you a miraculous magic...

of this lady getting up.

Impossible.

This patient considered herself...

to have cerebral palsy for 15 years.

Wait.

Are you implying that I misdiagnosed?

That's right.

Misdiagnosis.

This patient is a rare disease patient...

with a lack of dopamine in the body...

due to GCH-1,

the mutation located in chromosome 14.

It's called "Segawa Syndrome".

"Segawa Syndrome"?

I saw a book in the patient's room.

The congenital CP patients also have...

intellectual disabilities.

But it wasn't shown from this patient.

The symptoms of CP had features that worsened...

in the afternoon.

Accordingly, I made the patient...

take levodopa pills three times a day...

to replenish the dopamine deficiency.

The results are as you can see.

Thank you, Seo Joon.

You gave me a new chance at life.

You're my savior.

I'm not the one you should be thankful to.

But him.

Daniel is in charge of that ward. He just got off.

Daniel.

- Daniel. - Jennifer.

What are you doing outside?

Daniel, I walked 400 steps today all by myself.

Gosh, great job.

The medicine is working nicely.

- Let's go and take your medicine. - Oh, by the way,

what happened to that patient?

The patient who's suffering from the same illness as me.

I've been secretly giving her this medicine.

I can't believe the doctors diagnosed her with cerebral palsy.

- Let's go inside. Careful. - Why don't you just tell them?

He's the one who identified...

that this patient had Segawa syndrome.

If it wasn't for him,

she would've been in a wheelchair...

for a lifetime.

Thanks to him, Gary, who was suspicious of me,

ended up leaving the hospital.

And after that, no one suspected me...

for the death of the patients.

Excuse me.

This is for you.

I don't have the ability to do anything else for you.

But there are tons of mice in my neighborhood.

Why are you giving me this?

I got a call from school.

They asked me if I'd like to study genetics there.

They're also going to let me get a degree there too.

It's all thanks to you.

Thank you.

I'm the one to thank you.

You were the best work of art that helped me...

hide my identity.

I have my own lab.

No one knows about it yet.

The moment you open that door, you'll be opening Pandora's box.

What kind of experiment are you doing with mice?

I'm doing brain implants.

- Really? - The brain...

is connected with a complicated neural circuit.

So it's impossible to access it.

And I'm trying to connect that complicated neural circuit.

I'm also looking for a way to prevent rejection...

once the transplant is complete.

But why are you doing this?

The brain only weighs 1.4kg.

But it contains the entire life of one human being.

It's interesting.

That means I have the power to control someone's life.

That's what you call a deity.

There's nothing special about being a deity.

"A deity"?

What about you? What's your dream?

Me? My dream...

is to find good genes.

I want to find good-natured genes...

so I can create a world without wars or crimes.

One of our researchers is Korean,

and he also wishes to create a utopia like that.

Why not just find bad genes?

If you find those who have genes with criminal instincts...

and prevent them from committing crimes,

you'll eventually be able to create a world with no crimes.

You're right.

Then I'll try to find a way to find bad genes.

Great. I hope we both get to achieve our dreams.

He said it was somewhere near here.

Are you ready?

Are you ready to face the truth?

After I killed Jennifer, I came back to Korea...

and became the best neurosurgeon.

I was enjoying my fame as a prestigious doctor,

and because of that, I had forgotten about my dream.

("Daniel Lee Successfully Detects Psychopathic Genes")

Daniel.

At least until that guy suddenly shook the entire world.

I only said it half-heartedly.

I couldn't believe he was trying to invade my realm of the divine.

This isn't good enough. It's not enough.

You haven't eaten, have you?

Would you like to eat some meat?

Meat? Sure.

Let's have grilled meat.

Let's go.

I needed brains.

Human brains.

You may enter now.

I wonder if something happened.

- Detective Ko! - Detective Ko!

How could you really commit murder?

- Please tell us! - What really happened?

- Tell us what happened! - Tell us!

- Detective Ko? - Tell us the truth!

(Execute the Head Hunter!)

(Execute the Head Hunter!)

(The house of a monster! The house of a murderer!)

Everything was perfect.

I was very close to perfecting the brain transplantation.

And I was also about to have...

a child of my own.

But one day, Daniel called and told me...

he'll be coming to Korea.

Wasn't it hard to adjust in the States?

It was very difficult to adjust.

He was nothing but a prop for my act.

I couldn't let someone so inferior...

take over the realm of the divine I've been dreaming to achieve.

I suddenly felt rushed.

I urgently needed to find a prey.

- Just one last experiment. - Do you know the way?

2, 3...

Three brains.

That was more than enough to carry out...

my last experiment.

Here we go.

How's the speed?

- Faster! - Where's the mineral spring?

See that over there? It's that way.

Please don't kill me.

Run! Get out of here!

Darn you!

Everything was perfect.

I killed nearly 20 people in the course of a year...

and made no mistakes whatsoever.

I thought the killings were perfect.

Mommy...

Just you wait, Han Seo Joon.

Detective Ko killed the suspect of the tie-knot case.

Fancy that.

You actually did it, kid.

I guess I should be waiting with a cleanly scrubbed neck.

I must talk to her.

I have something to say to her.

I must tell her something.

We said you can't.

How could you have operated on me though?

You're in prison.

The day after you were injured,

someone visited me.

I'm Officer Jung Ba Reum.

A very special someone.

I'm sure you remember me.

Of course, Officer Jung.

I was briefed on your reinstatement.

I'm glad to see you back at good health.

What brings you by here?

You must have something to say to me.

Join me.

This was your brain after the incident...

and this was Sung Yo Han's.

Your frontal lobe was severely damaged,

so Sung Yo Han's was harvested and then planted into yours.

How did you know that Han Seo Joon could transplant brains?

The day after you were injured,

I received a video tape by someone unknown.

Film in this direction and keep the camera still.

This video.

Where did you get it?

I'll ask you point-blank.

Were you successful?

Your son bashed another young man's brain.

The doctors say that the damage is beyond repair.

If the brain transplant can be done...

Then what?

I plan to gamble on it.

I never took you for someone this dangerous.

Why would you trust me to do the surgery?

It's not like you don't know who I am.

He'll die anyway if no measures are taken.

What do I get in return?

For doing the surgery...

No, for bringing him back to life.

What do I get in return?

Name your price.

Freedom.

Being locked up here for 30 years...

has made me stiff all over.

Truth be told,

letting a talented man like me rot behind bars...

can be considered as a waste of resources.

Don't you agree?

Fine, I'll bring him back to life.

Were strong security measures taken?

This ward has been closed off and can't be accessed...

by those without clearance.

It'll be over for us if word gets out.

Don't worry, ma'am.

A minimum number of staff members prepared the surgery,

but they weren't told what it was for.

You agreed to pardon him in exchange for saving my life?

No.

No? Why not?

I hear no president rejects your proposal.

I'm only the Chief Presidential Secretary.

Even if I had the authority to pardon you,

I wouldn't give in to your demand.

Fine.

We're done here.

Please.

Please...

Saving the honorable life of a young man...

is the only way you can atone for your sins.

The whole world is praying for him.

Please save Mr. Jung's life.

Atone for my sins?

An atonement?

An atonement?

Did you really believe saving me would do that for him?

Why did it have to be Sung Yo Han's brain though?

Transportation issues prevented us...

from using the brain we had prepared.

Just then,

we were told that Sung Yo Han died of respiratory arrest.

So with the consent of his father Han Seo Joon...

A criminal as a next-of-kin?

What you did is a crime!

I know it's an excuse,

but we couldn't turn our backs on the people's hopes.

No, you used me to stay in power.

If I die, it'll hurt your chances...

at the upcoming presidential election.

How you take this is up to you,

but I sincerely believed that...

I'd be letting the people down if we lost a young man like you.

If it weren't for her,

you would not be alive right now.

She got down on her knees...

and begged Han Seo Joon to do the surgery.

Can we let him leave like this?

- If he chooses to talk... - He won't be able to.

How could he tell the world...

that a piece of a killer's brain was planted in his head?

I'm curious about Han Seo Joon though.

Why do you think he suddenly changed his mind?

What do I need to atone for?

What's so wrong about a lion taking the lives of a few mice?

That's what he said.

But why did he change his mind about the surgery?

Where did you get this video?

It was sent to me by someone unknown.

I see you're still alive.

I noticed that his interview was edited out...

from the documentary.

I'm just really curious.

What could he have wanted to confirm?

Could it be...

No, there's no way he'd know.

I should've killed him back then.

Right then.

(Korea Correctional Service)

You will only get 10 minutes for your interview.

(Korea Correctional Service)

Yes.

It was her.

Park Hyun Soo.

So...

the reason she made that documentary...

was to kill me. Was that it?

How amusing.

Thanks to her documentary,

Ko Moo Won was murdered.

Ba Reum!

- Bong Yi. - What happened?

Sorry, something came up...

Did Mr. Moo Chi really kill that murder?

What do you mean? Detective Ko killed whom?

- Hey. - Ms. Choi.

What is this about Detective Ko killing Woo Jae Pil?

He turned himself in.

The officers at the scene gave consistent statements...

and he was holding the murder weapon when they arrived.

But something is suspicious.

What?

He had a gun, so why didn't he shoot?

Why did he use a scalpel?

Where's Woo Jae Pil's body?

There are no defense wounds.

You're bound to resist if someone attacks you.

So why did he not resist?

I sense rage in this wound.

If Detective Ko killed him, his motive would've been...

to go into the prison where Han Seo Joon is,

not rage toward Woo Jae Pil.

The neck wound is the deepest.

So he stabbed with the intent to kill.

It was overkill.

He kept wounding him even after he died.

The extreme rage made him lose self-control.

Detective Ko would've gone straight for the kill.

- Please sign here. - Okay.

The police took everything Detective Ko was in.

We want to see a different part.

What's this thing sparkling here?

Let's zoom in.

How... The hospital...

I can't make out the shape.

Hold on. It must've been caught by another camera.

I think I know who killed him. I need to go. Bye.

I'm going to go see my baby.

We're going to see our baby.

- Let's go see our baby. - Honey.

Hold on.

- Okay. - Well...

We're on our way to turn her in.

She'll be scared if you arrest her here.

I was selfish.

I wanted Moo Chi to kill the jerk who did that to my children.

I won't ask you to understand.

Where's your daughter's grave?

Goodness. What are you doing? Come out.

- What do you mean? - Shut it and come out.

If it weren't for Officer Jung...

Officer Jung?

That's right. He went to Inspector Park to catch the killer.

What? How did he know?

- What? - How did he know...

that Inspector Park's wife killed him?

She killed him?

Jung Man Ho!

Why are you crying at my daughter's grave?

This isn't your daughter.

What do you mean?

This girl buried here...

What do you mean?

She's my daughter.

My daughter.

My Soo Jin...

This man... Why is Jung Man Ho...

Two of the same hair ties...

that Park Hyun Soo was wearing when she was abducted...

by Han Seo Joon were found.

They ran a DNA test on the hair found on the hair tie...

which matched Park Hyun Soo's.

But as soon as Woo Jae Pil admitted to killing Park Hyun Soo,

Jung Man Ho, who was like a brother to him,

stabbed and killed him with extreme rage.

Why?

Why did Jung Man Ho...

kill Woo Jae Pil?

Why did he kill him?

I was reminded of my daughter.

You don't have a daughter.

What if he didn't lie and really had a daughter?

1994. Guryeong City.

There was a missing girl.

Hold on.

Here.

(Jung Soo Jin)

What are her parents' names?

She only had a dad. His name is Jung Man Ho.

My Soo Jin...

Soo Jin!

What are you doing?

So... Jae Pil is...

a murderer?

Soo Jin!

Daddy!

Why is that...

We have an emergency.

There's an armed assailant in the lobby of Moojin Hospital.

No, right?

My Soo Jin... It's not her, right?

Right?

Then...

why did the knife that they found in your house...

- have Soo Jin's necklace on it? - Daddy!

Why was that there?

Tell me.

Why are you closing your eyes? Open them.

Open your eyes and tell me.

Back then...

Please help me find my daughter.

- You helped me look for her. No. - Please help me find my daughter.

You were more desperate than I was to find her.

Here you go.

The police are searching for her, so we'll be able to find her soon.

I'll go hand these out over there.

Okay. Thanks.

You were more desperate than I was to find her.

So tell me.

Please tell me she's not my daughter.

Please. Please!

I'm sorry, Man Ho.

What?

Why are you sorry?

Why are you sorry?

I felt guilty all my life.

Please believe me.

What?

What did you say, you jerk?

Die! Die!

Die!

Soo Jin!

(Moojin Bukbu Police Station)

- Sir, about your daughter... - Yes.

They're going to do a DNA test.

The results will tell me...

whether the girl in the grave is my daughter...

or Man Ho's.

Anyway, thank you.

No problem.

- By the way, - Yes?

how did you know Man Ho was the culprit?

Oh, well...

I found out by watching the CCTV footage.

Oh, I see.

- I'll see you. - Goodbye.

(Moojin Bukbu Police Station)

If I tell him I found this there,

then he might find out that I have Sung Yo Han's brain inside me.

(Main building)

Officer Jung.

Ms. Choi.

Thank you for finding the culprit.

But why are you thanking me?

Is it because Detective Ko got released?

I bet he resents me a lot right now.

I'll be off now.

Gosh, you look like a totally different person in a suit.

I tried to clean up nicely.

I'm having dinner tonight with my parents-in-law.

You're already calling them that when you're not even married yet?

You must be really happy.

By the way, about Mr. Kim...

I heard he didn't deserve to come to prison.

Everyone thinks that,

but there's nothing he can do.

The Supreme Court already reached a verdict.

There's a fight going on in building 3H28C.

- One of the inmates is... - 3H28C?

possessing a sharp weapon.

Patrol Team, please report to the area immediately.

Come here.

I told you not to take his side.

He's a jerk who killed 10 women. Why would you take his side?

Put that down. Put it down right now.

Calm... Calm down.

- Back away! - Hey!

Everyone in this prison knows...

that he didn't do it.

So stop bullying him!

You punk!

Get off me!

Let go of me!

- Get off me! - Stay still!

Thank you for finding the culprit.

I wonder if he really...

had feelings for her.

Gosh, that startled me.

Hey, Ba Reum.

You reek of alcohol.

I'm also as righteous as you are.

I'm a good guy.

Why did you drink so much?

Did you fight with your fiancee again?

What happened? Did you get hurt?

You know the gangster...

I told you about?

Oh, that guy who keeps bullying Mr. Kim?

That gangster bullied Mr. Kim again,

and he ended up hurting another inmate who tried to stop him.

- Is it that person's blood? - Yes.

He got locked up for assault, but he's a good guy.

He was only trying to catch the guy who raped his daughter.

My gosh. Did he get badly hurt?

Thankfully, no.

But you see, despite his old age, Mr. Kim suddenly got up...

and attacked that gangster who was wielding a knife.

Do you know what I was doing?

I just stood still.

I was so scared.

I was sacred I might get hurt.

You're also human. It's natural...

Chi Kook wouldn't have been a coward like me.

Chi Kook.

Gosh, I'm late.

Why didn't you wake me up?

I'll see you.

Already? Okay.

Bye.

Gosh.

With the consent of the victim's family,

the police will collect the DNA directly from the grave...

and request the NFS for a DNA test.

Many people are eager to find out...

whether or not the buried corpse is really Victim A.

He was going to kill Han Seo Joon and become a murderer himself,

so he knew he couldn't...

Actually, he was determined to keep you out of it.

He made the decision...

on the day he was actually going to ask you out.

I'm sorry.

Why did you pretend like you didn't know anything...

when I asked you to help me find Han Seo Joon's son?

Were you worried I might harm your boyfriend?

If you cared about me even the slightest bit,

you never would've dated that murderer.

I'm sorry, Moo Chi.

Why did it have to be Sung Yo Han?

There are tons of other guys in this world.

But why him of all people?

What made you fall for him so much?

I saw a similarity.

A similarity? With whom?

We were very similar.

That's why I was attracted to him.

How exactly are you two similar?

Did you also kill someone like him?

Is that why you think you're similar?

Get lost. You're ruining my mood.

Don't touch me!

Don't you dare touch me!

(Dried pollack)

The culprit who killed Victim A,

who was also a suspect for the tie-knot murders,

turned out to be A's best friend.

The police are assuming that A was the one...

who murdered the culprit's daughter 26 years ago.

However, the police will investigate the exact motive for his murder...

and file for an arrest warrant.

You almost killed the guy.

Why would you do that to a friend?

"Friend"?

Why am I friends with the Head Hunter's son?

Whose son?

(Patient Name: Sung Yo Han)

No, don't.

- Let go. Let go of me! - Hey!

Do you have it worse than those people?

The bereaved families of your father's victims.

Even they endure the pain.

So live to prove them wrong.

Tell them that you're different from your father.

Hurry!

- Careful. - Gently.

We were running from a cult when its dog bit her.

Gosh, you're relentless.

- That hurts. - But not enough to kill you.

As if. People die from being bitten by dogs.

Wait, you look familiar.

Don't you remember me?

How can you not when I saved your life?

I'm Choi Hong Ju, the producer at OBN.

Thank you.

The culprit who killed Victim A,

a suspect for the tie knot murders, turned out to be A's friend...

- and not a police detective. - Hello.

Goodness. A job well done by the officer of the nation.

I heard you caught the killer.

Well, it wasn't exactly me, but...

Gosh, let me do that.

Don't be ridiculous.

This should be done by me, not the nation's son.

No, let me do that.

Excuse me.

The man living in the unit above us...

followed us home while swearing at my sister.

What if he actually made it into our house?

We already checked out your neighbor once,

but he insisted that he was at home.

Are you saying that I'm making this up?

No, of course not.

There are decent door cameras out these days.

How about you install a security camera?

We barely make do, so with what money?

We'll make sure to patrol the block more often.

Got it, Officer Jung?

Yes, we'll do our best...

to keep you safe.

Officer Jung, are you all right? What is it?

Please excuse me.

(Here's what you asked for. A photo of you in kindergarten.)

A photo of you in kindergarten.

Like I suspected, it wasn't me.

They aren't my memories,

but Sung Yo Han's.

(Pyeongan Precinct)

- Hello. - Hi.

Is Officer Jung Ba Reum here?

He didn't seem well,

so the boss told him to head home.

- Oh, I see. Thank you. - No problem.

A nasty brain has been placed in this mouse.

It might kill you too if you let it live.

"A nasty brain?"

Sung Yo Han's brain that's in my head...

Quiet.

Shut it!

Detective Ko, what are you doing here at this hour?

Darn you.

Who do you think you are?

Come on. How dare you?

- I see you got wasted. - Darn you.

You...

Who told you to catch the real killer?

You darn idiot.

Darn. When will the whining stop?

You childish fool.

What?

As if you know anything.

Have you seen your family die?

Have you seen your family die before your eyes?

This is all your fault,

Ko Moo Chi.

(Mouse)

The father's necklace...

and Bong Yi's grandmother's brooch were here.

But they were gone when I came back with Officer Nam.

Officer Jung, aren't you too lost in the theory...

that another was responsible for Sung Yo Han's killings?

The bones' congestion indicate that the victim was strangled.

Since when did you study medicine?

Darn jerk. I can't believe you forgot my wedding.

Darn. Why did I miss this?

It's extremely stable.

It's the work of an expert.

Someone else was behind it all along.

(Mouse)

(This drama is purely fictional and is not associated with...)

(actual people, organizations, locations, or incidents.)

(Filming was in compliance with COVID-19 guidelines...)

(and counseling was provided for child actors.)

(CGI was used in most scenes that include animals.)

Your baby is almost due,

so come right over once the contractions begin.

Got it.

It's been a month since Han Seo Joon's arrest,

but the police have yet to find the heads of his victims...

other than the couple at the campsite...

which is only hindering the investigation.

Han Seo Joon, the notorious serial killer...

known as Head Hunter who beheaded at least 20 people.

He still remains silent though...

as if to taunt the police...

which the authorities...

Hey, what are you doing?

- What are you doing to this boy? - Get off me!

- What are you doing? - Ma'am, you can't do this.

- Get off him. - No!

- No! - Get off him.

- No, you can't! - Gosh.

No...

You got your baby tested, didn't you?

What do you plan to do?

Don't have this baby.

You must not have this baby.

Never. Don't have this baby.

- What are you doing? Let go! - Don't have the baby!

- My gosh. - You must not have this baby. No!

No!

She tried to commit murder-suicide.

Poor kid. Why try to take the kid with her?

The numbers are around 30 to 40.

We'll keep him on watch.

(Emergency Medical Center)

(Mouse)

The suspect in the tie knot murders...

died after being attacked by an acquaintance...

while being treated at the hospital.

Since there's no right of arraignment,

the case will be closed.

What the...

- Are you all right? - What?

Right.

What's with your hand? Did you injure yourself?

No, it got jammed between a door.

Anyway, come out when you're done.

Did you make all this?

Yes.

We could've just eaten out.

It's fine.

I'll enjoy it then.

It's not much.

It's good.

So about yesterday...

Did we perhaps argue?

I remember coming here, but my memory ends there.

You grabbed me by the collar the moment you came by...

and swung at me.

I had to subdue you. I'm sorry.

No, don't apologize. I'm the one who's sorry.

I really should cut back on my drinking.

You should or it could someday kill you.

I won't die.

Not until I kill the scumbag.

I understand your wrath,

but Han Seo Joon's already on death row.

What good does that do...

when he's still alive eating his meals every day?

The nation won't execute him, so I should do it instead.

Talk about having the worst luck ever.

The suspect I chased for a year jumped from a building...

and I was only suspended for a year even though I killed a man.

Then, someone beat me to killing another suspect.

Can my luck be any worse?

It's the other way around. Father Ko is looking out for you.

I've been remembering the events that happened before my injury.

The Father Ko I remember...

always worried about his little brother.

It hurt him to feel your pain.

Don't get water on that hand. You don't want an infection.

- Hey, Bong Yi. - How's your hand?

Is it all right?

Yes, it's fine.

No, don't kill him. Don't kill him.

Smash that into his face. Kill him!

Kill him. Smash his head.

Kill him. No!

- Ba Reum? - Bong Yi.

Your hand. What happened?

Oh, I... I...

It got trapped in a doorway.

Anyway, Detective Ko was absolutely wasted.

I was helping him inside when he fell down...

You idiot! You should've gone to see a doctor.

Let's go.

Remember what the doctor said.

You should be careful while the bones get set in place.

Got it.

A nasty brain has been placed in this mouse.

It might kill you too if you let it live.

A nasty brain...

might kill me from within?

I'm baffled at how quiet it's been.

The world should've been shaken right about now.

The world's first successful brain implant.

Inside Jung Ba Reum's head...

lives the brain of a serial killer.

Have you decided to keep your mouth shut instead?

Well, I'm disappointed.

I thought this would finally make me as famous as Daniel Lee.

There seems...

to be a problem.

I almost killed a man.

What on earth...

is happening to me?

Tell me.

I once transplanted...

the frontal lobe of a violent mouse into a docile one.

The mouse that used to be docile...

slowly started to become violent.

And in the end...

Are you scared...

that the same thing might happen to you too?

I'm also quite curious myself.

You were the first human to get a frontal lobe transplant.

But of course, I didn't replace your entire frontal lobe.

It was only the parts that got damaged.

But I hope that you won't let Yo Han...

take over you.

I really mean it.

Detective Ko, I'm sorry.

I must've been...

Did you hear the results?

She turned out to be Jung Man Ho's daughter.

It wasn't Hyun Soo.

Then...

Then what about my daughter? Where is she?

Sir.

Sir.

Sir!

I'm getting a lot of visitors today.

It's nice to receive special treatment here.

They even let me have two visitors a day.

Why didn't you tell me?

Why didn't you tell me that the remains wasn't my daughter?

I never said it was her.

Where is she?

Where did you bury her? No...

Where did you abandon her?

I'm not sure.

It was so long ago that I can't seem to remember.

You don't remember? You don't remember?

My wife's time stopped ticking 25 years ago...

when you kidnapped our kids.

But you're sitting there telling me you can't remember...

because it's been so long?

Before you get angry at me,

you should blame yourself for speaking rashly.

You little...

You know what? I'm sorry.

I'm sorry, sir. I apologize.

If you want me to rip my tongue out, I will.

So please just allow me to bury my daughter...

at a decent place with sunlight.

Gosh, I really don't remember.

- You need to stop bothering me. - You jerk!

I'll kill that punk!

- Calm down. - You darn scumbag!

Tell me where my daughter is!

Get off me! Let go! Hey!

Let go of me! I'll kill that jerk!

Let go! Let go of me, you punk!

You'll end up regretting...

shooting Yo Han.

Yes.

I already regret it.

If I knew he was your son,

I would've killed him after letting him see me kill you first.

You have no idea how much I regret...

not having done that.

I don't see any signs of rejection.

Everything seems fine.

- Is there a problem? - The thing is,

I keep getting flashbacks from Sung Yo Han's memory.

And I think I've become a lot more violent.

What if I end up becoming like him?

This is why...

we didn't want to share whom the donor was.

Did you start having those symptoms...

after you found out that the transplanted brain...

used to be Sung Yo Han's?

Yes.

- But... - People who receive transplants...

sometimes believe that they've become similar to their donor.

I'm sure it's even worse for you...

since you received his brain.

I'll prescribe you some medicine. Take them regularly.

(Pyeongan Precinct)

It's like you're the first freelance constable in Korea.

I know the chief told you to take it easy,

but this is too much.

- I'll do it. - No, it's fine.

Plant some flowers outside.

We need some photos of the precinct for a PR brochure.

And the chief thinks the flower garden is too empty.

Okay.

Oh, I almost forgot. Give that to the evidence managing team first.

We left out an evidence regarding Kang Min Joo's murder.

- Oh, really? Okay. - Yes.

- I'll be right back. - Okay, see you.

Detective Ko.

Detective Park.

I'm leaving you evidence regarding Kang Min Joo's murder.

(Sung Yo Han...)

(Sung Yo Han Murder Case)

This is all just psychological.

I'll be fine.

What are you doing?

We left out a piece of evidence regarding Kang Min Joo's murder.

So I brought it for you.

But what were you doing on my computer?

I was looking for the brooch...

that belonged to Bong Yi's grandmother.

She was wearing it on the day of the incident,

but Bong Yi never got it back from the police.

Bong Yi seems to really want it back.

I looked inside the evidence box, but it wasn't there.

So I thought it might at least be on the list.

That's why I was on your computer.

- Her brooch? - Yes.

I'll look for it.

Okay. I'll be off then.

Let me know once you find it.

(Sung Yo Han Murder Case)

There's no brooch.

Here you go.

A, a former detective and suspect of the tie knot serial murders,

worked at a moving company after retirement...

while raising a son all by himself.

And he had a very good reputation among his acquaintances.

You spiteful wench.

Why in the world are you back here again?

Will you please leave this neighborhood?

If I make you feel uneasy, you should be the one to move.

You're at fault for giving birth to a son like him.

What did you just say?

Just move to another neighborhood!

Get off me!

- Detective Ko. - What's the matter with you?

I'm very interested in the Bible these days.

An eye for an eye, a tooth for a tooth.

If you ever do this again,

I won't let it slide no matter how old you are.

Where are you going, Detective Ko?

Why did you lie to me?

It's so upsetting.

Mom.

That girl...

grew up to be a pretty lady.

Let go of me!

Why are you here?

I heard you asked Officer Jung to find your grandmother's brooch.

I went to the hospital to talk to you about that,

but you were already gone.

Why couldn't you stay a few days and get some IV injections?

Do you think I have an easy life?

So did you find the brooch?

No, I couldn't find it.

It's not even on the evidence list, so she must've dropped it somewhere.

Maybe.

What are you doing?

Don't you know that Kang Duk Soo got out of prison?

I can't believe you had the guts to come back here.

Of course, I know. The entire country knows.

Do you know how close he lives from here?

He doesn't live here anymore.

His mom does.

- Who knows when he might return? - So what?

I can't always be on the run because of that.

Where do you suggest I go this time?

Should I just live on the streets?

Do you think I wanted to come back to this horrible neighborhood?

My grandma and I ran away and lived in an empty house...

that was located in a redevelopment area.

Among all the houses in Korea,

this is the only place I can live in.

This house that my dad built.

You should come to my place for now.

- Pack what you need. - No, why would I go to your place?

Who do you think you are? You're not my dad.

Well, I'm obviously not...

your dad.

Do you even eat properly? Do you eat ramyeon every day?

I eat well.

You're the one who shouldn't skip meals.

I'm leaving.

About Woo Jae Pil.

- Yes? - Did he work for a moving company?

That's what they said on the news.

Yes, he worked in a team for a moving company.

- Why? - His hand was...

way too soft for someone...

who worked for a moving company.

It felt like he never worked a hard day in his life.

He couldn't have done physical labor.

Also, when he covered my mouth with his hand,

I felt something cold. Like something metallic.

- Metallic? - A ring?

I'm not sure.

Bong Yi said his hand was soft.

But Woo Jae Pil worked at a moving company after retiring.

His hands couldn't be soft.

Can we talk later? I have to finish this today.

You saw him in person.

They used to baby you and say you were the National Son.

But now, they make you do this with an injured hand!

- Stop it. - Should I call reporters here?

Stop it. You'll make me look bad.

I feel uncomfortable around Officer Nam as is.

What? Officer Nam ordered you to do this? Not even the chief?

You should care for you sick colleague...

No, no. Please. I'm fine. I say I'm fine.

I'll do it. Sit down. I'll be quick.

I can do it faster.

Just plant those, right?

Why are they suddenly doing this?

I hate putting up pretenses like this.

Detective. Do you have the pictures?

The pictures from the scene...

where Park Hyun Soo, I mean, where Jung Soo Jin was found.

Woo Jae Pil confessed to digging the hole...

- and burying her himself, right? - Yes.

Look. I'm a righty,

so I grab the back of the handle with my right and lead with my left.

This is how I dig.

When the shove hits the ground, the left tip has all the power,

so the left side gets dug deeper than the right.

But look.

If a lefty dug it, it should be the opposite.

But it's the same as the hole I dug.

That's right. It should be the opposite...

since Woo Jae Pil was a lefty and you're a righty.

He was definitely a lefty.

So someone else dug the hole.

I see why it's in the same direction.

He has a cast.

He had to dig with his right hand because of the cast.

He couldn't have tied the knot with just one hand.

So there was another lefty who tied Jung Soo Jin's hands together.

I remember the knot in the rope around Jung Soo Jin's wrists...

- As if a child tied it. - He said it was clumsy.

A child. A child...

Woo Hyung Chul was...

12 at the time. He was in the 5th grade.

But Woo Hyung Chul had a solid alibi...

during Hong Na Ri's time of death.

That's what we have to solve now.

During Hong Na Ri's time of death,

Woo Hyung Chul was installing bars on that window.

Were you home the entire time it was being installed?

Of course. Quiet.

That's right. I took Simba to the vet for a short while.

Was Mr. Woo here when you got back?

He was finishing up.

How long were you gone?

About 20 minutes?

The vet is just on the big street.

20 minutes.

What was wrong with him?

He had a convulsion.

They said he went into shock due to hypotension.

They asked if I fed him xylitol.

All I ever fed him was dog food.

Maybe he ate something when I took him on a walk.

He fed something to the dog...

to create his alibi.

Okay. It takes exactly eight minutes by car...

to Hong Na Ri's place, so 16 minutes round trip. Next.

- Are you done? - Yes.

Next, my neck.

Here I go.

Strangle me.

That's a bit strong.

It's too strong.

More. Squeeze harder.

Harder.

It'll feel really good.

Darn it. You freak.

What's your problem?

All you had to do was pretend! Why did you squeeze so hard?

- Untie me now. Hurry. - Okay.

Untie me.

That's 20 minutes already.

It was impossible to kill her here and get back...

in time.

Are you okay?

Yes. Are you okay?

- I almost died, you punk. - I'm sorry.

I'm dizzy.

It's 16 minutes round trip to Hong Na Ri's home and back.

Tying her up and murdering her takes 5 to 10 minutes.

It takes at least 20 minutes.

She would've resisted, so if he had to suppress her...

and cleaned up, 20 minutes isn't enough.

20 minutes isn't enough.

You look terrible.

Go home and rest after you eat.

Okay.

Anyway, you've changed a lot. You keep surprising me.

- What do you mean? - To be honest,

before you hurt your head,

I didn't think this job was a fit for you.

But now,

I feel like you can read the mind...

of killers.

Yes. How could you chance so much?

Maybe I should get brain surgery too.

I haven't changed.

That's hot.

I was complimenting you.

You're so sensitive today.

I'm sorry.

I burned the roof of my mouth because of you.

- Go get me a beer. - Okay.

That punk.

Here you go.

Why isn't this beer cold?

I wanted to cool a pot of bone broth,

so I took them out for a bit since there wasn't enough room...

- and just put them back in. - What is this?

It's plenty cold. You're so finicky.

Finicky?

Beer should be drunk ice cold!

I don't want it! Put it back.

Pain in the butt.

What did you just say?

Me? I... I didn't say anything.

You said something to me.

Detective.

I found it. The solution to the Woo Hyung Chul riddle...

for the day of Hong Na Ri's murder.

Have a nice day.

It's cold. Go back in.

Hello.

Hello.

How was your father's funeral?

It went well. Thank you.

What brings you here?

- You have soft hands. - Pardon?

You're relieved that your dad died and took all the blame, aren't you?

What are you talking about?

Your dad was so naive.

He probably thought if he died for you,

you'd feel guilty and get your act together.

- Look here. - But sorry.

I'm an expert on scumbags like you.

Scumbags like you can't stop killing people.

It's out of your control.

It's an addiction.

You psychopath.

Then crack my alibi during Hong Na Ri's time of death.

Before more people die as you say.

A few days ago,

I got really sick...

after drinking bad milk.

But that milk was in the fridge and hadn't expired yet.

So why did it go bad?

But the place I drank the milk was Hong Na Ri's home.

Yesterday, I tried to get a beer at a market,

and it was lukewarm.

I complained to the owner and asked why it wasn't cold,

and she had put in a pot of bone broth...

and removed the beers for a while.

When he saw that pot, our smart Officer Jung figured it out.

Something that doesn't belong in a fridge.

You did not murder Hong Na Ri that day.

You set the fridge to one degree.

The windows were sealed, so it was 27 degrees in the room.

The body would've started to decay within a day in that temperature.

But you put it in the fridge, so it didn't decay for two days.

You needed an alibi,

so you chose the home closest to Hong Na Ri's to install the bars.

You saw in the file that she had a dog.

And then you brought something poisonous for the dog.

Mr. Woo, I need to leave for a while!

Sure thing.

Once the resident left as planned,

you headed to Hong Na Ri's house.

You took her body out of the fridge...

and texted her separated husband over to the house.

Can you come home right away?

Why? To create your alibi.

Someone had to find her before the body decayed.

You then came back to finish installing the bars.

I'm sorry about that, Mr. Woo. My dog suddenly got sick.

- Is it okay now? - On that day,

you only needed five minutes to take her body out of the fridge.

Three days prior to her body being found,

on the 5th from 4pm to 6pm, you have no alibi.

You went home early at 4pm...

complaining about being under the weather.

It's only a 30-minute drive from the office to your house,

and Hong Na Ri's house is along the way.

Your car was filmed on camera an hour after you left the office.

There's a 30-minute gap...

which is the time one would need to kill Hong Na Ri...

and stage the scene.

I didn't know I was talking to the Brothers Grimm.

How about you begin a career as novelists?

It seems more up your alley.

Shall we, Officer Jung?

I'm more into documentaries than novels.

Yes, me too.

Why don't we show him this then?

The DNA sample found in the fridge...

is a 99 percent match to Hong Na Ri's. See?

Do you have a warrant for my arrest?

Then, bring that to me first.

Because of you, I'm late for work,

so excuse me.

What's taking so long?

See when we'll get our warrant.

As if I need one, you scumbag.

Are you looking for these?

What? What the...

- I emptied the gun while you slept. - Give them back.

- Give them back! - No way.

- Come on. - Not these.

- Give them back! - No way.

- Never. - What?

Stop right there. Darn it!

- Hey, you! - Detective!

You're under arrest for the murders of...

Kim Young Hee, Kang Min Joo, and Hong Na Ri.

Anything you say can and will be used against you...

- in a court of law. - How did they get here?

Isn't it obvious?

You didn't request the warrant you mentioned,

so I asked Detective Shin for one.

Darn you, Officer Jung!

Detective,

you were protected once again...

by Father Ko.

A second operation?

Yes, I want one.

The medicine you gave me isn't helping.

That'd be impossible.

Sung Yo Han had died of cardiac arrest...

and his brain was harvested before the nerves died.

There's no brain to implant this time.

I'm sure there's a way though,

so please look into it.

I'm now hearing things, you know.

Something might happen...

which terrifies me.

Even if we find a brain, you can't be operated on.

If the world finds out about this,

we'll all lose a great deal.

It's too dangerous.

Us all?

What...

You think your loss will be greater than mine?

I could lose myself as I know it.

Sung Yo Han's mind might take over mine!

If something happens to me, it'll be your fault.

So be ready to take responsibility for it.

A new suspect in the tie knot murders...

is now being investigated by the police.

He turned out to be the son of the original suspect, who is now dead,

so we look forward to...

- what the investigation unfolds. - Yes, doctor.

The police have requested a warrant for his arrest...

and the decision to re-investigate the tie knot murders...

has been decided.

This is Choi Young Shin.

I have an urgent favor to ask.

(Supermarket)

Hey, you.

Aren't you too young to have a fat tummy?

What's this?

Please look the other way just this once.

Here, take this with you.

The mom's an alcoholic.

She's been drowning herself in alcohol after the divorce.

Does she live around here?

I don't think the mom even sends her to school.

She spends all day with her mom.

After that monster was released from prison,

all the families with children moved away,

but I don't think the mom knows that he's back here.

- Who's back here? - Didn't you know?

Gosh, you really didn't.

Kang Duk Soo is back here.

I can't believe the police.

Shouldn't they have told you first?

I'll get going.

(Supermarket)

Hey, kid!

I won't take it from you.

Here.

Take this too.

The bun itself will be too dry.

What's your name?

Yu Na.

Yu Na, let me walk you home.

Come on.

Yu Na!

Yu Na.

Take this and enjoy it inside.

Go ahead.

Move out of this neighborhood.

As soon as possible.

Move?

Who are you to make demands at someone else's house?

Kang Duk Soo is back in this neighborhood.

So what?

I can look after my daughter just fine.

So move away yourself if that's what you want.

But you're...

But you're her mom.

Aren't you worried about her?

I said I can manage my daughter just fine.

Darn brat.

Who are you to meddle with our lives...

telling me to move away?

What if I told you I'm his victim?

Does that give me the right to meddle?

You're her guardian.

So keep her safe...

and stop drinking.

Ba Reum?

Ba Reum.

Bong Yi, nothing will happen to me, right?

Will I be all right?

Of course.

You'll be fine.

Nothing will happen.

Why though?

- Stop it. - Why was it dismissed?

Keep it down, will you?

Lack of evidence.

But Hong Na Ri's DNA was all over the inside of that fridge!

What can we do when we have our orders?

They want us to bring solid evidence.

I swear it's him!

The arrest warrant for the newly chosen suspect, A,

has been dismissed.

People are starting to criticize the police...

for their rash and coercive investigation...

Stop sighing. Let's find something he won't be able to deny.

- What's that? - Kim Young Hee's mother...

gave me this notepad. But there's nothing on it.

(I cooked ramyeon at night...)

This woman next to Kim Young Hee seems familiar.

Where did I see her?

Can I take this?

Do you have something to say?

No, it's nothing.

I know you, Detective Ko. What is it?

It's just a small favor.

Can you take care of someone for about a month?

- Who is it? - Just someone I know.

Don't ask any more questions.

- No. - If a month is too long,

- then how about a week? - I said no.

I wonder who it is.

He's normally not the type to ask favors.

(Ba Reum)

The receiver cannot be reached. You will be directed to voicemail.

Hey.

Thank you.

Detective Ko, are you okay? You're so quiet for someone so big.

I'm sorry. Oh, gosh.

Be gentle.

Woo Hyung Chul got released.

Be careful when you walk alone at night.

He wasn't even that strong.

You saw how good I am, right?

I guess you learned how to fight instead of studying at school.

Here.

What's this?

Who's Sung Ji Eun, and why did she send you so much money every month?

Are you a gigolo?

No, you don't have the face to be a gigolo.

What's wrong with my face?

That will be enough for you to get yourself a small studio.

You should move to my neighborhood. We can look for one together.

No.

I have no reason to receive this money from you.

Take it. I'm not giving it to you. I'm lending it to you.

- Plus, it's not my money. - No, it's not that.

Running away isn't going to solve anything.

I want to overcome it here.

Even if I run into him,

I'll make him avoid me.

Okay, fine. You really don't listen.

Instead, you'd better call me first if anything happens.

Okay?

Okay.

You're all grown up now.

By the way, about Ba Reum...

Is there something wrong?

- Why do you ask? - It just seems like...

he has something on his mind.

Yes, he doesn't seem to be in a good condition these days.

He also seems very sensitive.

Please...

don't let anything happen to me.

Please don't let me...

become a monster like Sung Yo Han.

Please.

Please protect me, My Lord.

Please.

(Do not enter, under investigation)

(Pyeongan Precinct)

Hey, Detective Shin. What's up?

I called to tell you good news.

I think you're going to get sent to the evidence managing team.

I should start calling you Detective Jung now.

Really?

I should call Detective Ko to thank him.

No, you should thank Detective Kang.

Detective Kang?

He wants you to keep Detective Ko company.

Detective Kang...

actually cares about Detective Ko the most.

Anyway, congratulations. Just a second.

Hello?

Oh, hey. A murder case?

Okay, I'll be right there.

He always claimed himself as the deity.

Did he really resurrect or what?

Hey, Officer Jung.

Sung Yo Han's MO was found at a murder scene.

- His MO? - The finger and the cross.

- I need to go now. - Detective Shin.

I'd like to go too. Send me the address.

What a lunatic. I can't believe they copied this.

I knew something like this might happen when people...

started talking about creating a fan club after Sung Yo Han died.

Look into the members and identify the victim.

Got it, sir.

It's very stable.

It's the work of a professional.

- I smell mint. - When we rolled down together,

he smelled of mint.

It's his smell.

But why am I smelling that here?

No way.

- Did you identify the victim? - Yes.

She's a 17-year-old high school freshman.

She lived with her grandfather.

- Is this it? - Yes.

Attention, everyone.

- Is everyone here? - Yes.

We're going to report today's case as an ordinary murder case.

Make sure the press doesn't think someone tried to copy Sung Yo Han.

But why?

As you all know, the entire country ended up having a trauma...

after witnessing a live murder case on TV last year.

It's finally being forgotten.

Let's not trigger their fear with news about a copycat killer.

We were ordered to keep this investigation classified.

We don't want reporters getting a whiff of it,

so watch your mouths.

Tell whoever isn't here.

- Yes, sir. - Yes, sir.

That's right. The brooch.

Detective. Did you find Granny's brooch?

It wasn't there.

She must've dropped it somewhere else.

I told Bong Yi.

Let me see the picture of Sung Yo Han's basement.

- That's out of nowhere. Why? - Please let me see it.

Darn it. Punk.

Let me.

Let's see the video the killer sent during the broadcast.

Okay.

Moo Chi. Hey.

Why are you back again?

So he was here already.

Officer Jung must have told you already.

What? What's wrong with him?

It's different.

That means it may not have been Sung Yo Han who sent this.

That means there's a chance he wasn't the killer.

Yes. I only remember hitting him, not killing him.

The person who hit him didn't necessarily kill him.

If someone else killed those people,

it means the brain transplanted in me isn't a killer's brain.

Explain. What do you mean, his signature?

Some psycho copied Sung Yo Han's MO.

I don't think it's a copycat.

I think the killer is someone else.

Look.

The basements are different.

This is not Sung Yo Han's basement.

I think you're right.

Places look different if you shift furniture around.

Look carefully. It isn't just the furniture.

You may be right.

They didn't find Bong Yi's grandmother's brooch.

Father Ko's necklace either.

Sung Yo Han had been taking the victim's belongings.

So why didn't we find Granny's brooch and Father Ko's necklace?

He has a point.

What about Dr. Daniel Lee and Han Kook?

They were never found.

Maybe he buried them with them.

- That's true, but... - If Sung Yo Han didn't do it,

why were photos of Byun Soon Young's corpse...

in his basement?

And why did he crush your head with a hammer?

Why did he try to kill you if he wasn't the killer?

Explain that, punk.

He's right.

- You have a wild imagination... - That's true,

but remember the mint scent I told you about?

The mint scent I smelled when I fought Granny's killer.

I smelled it at the crime scene.

There are countless shampoos, body washes, and stuff like that...

with a mint scent.

- But... - Hey!

Why do you hope so badly that Sung Yo Han isn't the killer?

Are you saying I shot and killed an innocent man?

Is that what you want?

- That's not it... - Get lost, punk.

You come out of nowhere...

Get lost. Go. Go back to your precinct.

- He has a point... - Go. Get lost.

Scram!

What do they take the evidence managing team for?

Darn it. He's back.

You should bring the evidence right away if there's a case.

Must I come to pick it up myself?

Where is it?

Is this it?

Yes, that's it.

Is this everything?

I hear you throwing a fit from way outside.

You're so excited to be on the evidence managing team.

(Written Opinion)

Was she burned alive?

No, he burned her after he killed her.

(Pyeongan Precinct)

- Hello. - Hey.

Pyeongan Precinct, Officer Jung Ba Reum speaking.

A suicide?

What's taking them so long?

I'll see if the ambulance is here. You stay here.

A mint scent?

If she hanged herself to commit suicide,

why did she stick her fingers in...

to stop herself from being strangled?

That means someone tied it around her neck...

and she stuck her fingers in before he pulled it.

It was murder.

And only the middle finger is stuck in the rope.

After she died,

someone pulled out all the fingers except for the middle finger.

Why? Why?

The culprit used the middle finger to swear at that cross.

It couldn't be...

There's something there.

I thought about it, and Officer Jung had a point.

That's nonsense. You impressionable Nepo.

You and your "Nepo".

I'm just saying it's worth hearing him out, that's all.

Get out. Stop distracting me.

Hi, Officer Jung.

What? You found what?

What is it?

I swear it's true.

I saw Father Ko's cross necklace...

and Bong Yi's grandma's brooch.

But by the time I brought Officer Nam,

they disappeared.

I was surprised when he told me and ran in...

but they weren't here.

So, the only person who saw the necklace and the brooch...

- was Office Jung. - Yes.

And you hit your head when you fell off the chair.

I saw them before I hit my head.

Detective, I'm sure the killer took them.

So what you're saying is, the killer set it up and took it back.

Why?

Maybe you're too obsessed with the theory that Sung Yo Han...

wasn't actually the killer.

I swear they were here.

Check the CCTVs.

You must be getting some fun on the side though.

Check the camera by the entrance.

I did, but it was a dummy.

I swear they were here. They were.

Are you sure it was murder?

What about her identity?

- An illegal adult massage parlor? - Captain.

Please put a tail on Woo Hyung Chul.

What was that? Don't you do anything legal?

- No. - So... The thing is...

Someone else is the killer.

Good. I'll catch him myself and prove that my new brain...

belonged to a normal person, not a murderer.

(Police)

From the alley to here, it took...

three minutes.

And he waited here and dragged her away.

So he knew Kim Jin Ah would come this way.

So it's someone who knew where she lived.

Perhaps someone who had stalked her for a while...

or had been to her place at least once.

- Hello, Detective. - Hey. Where are you?

You're not at your desk.

I came out to look into something.

What is it?

I need to tell you something.

Let's talk in person. Hurry back.

What is this? Does he have OCD or something?

This makes me uncomfortable.

I can't look at things like this.

He's working hard to prove Sung Yo Han's innocence.

They were close.

She got along very well with her daughter.

She was close to Soon Young.

It's her.

Yes. When Young Hee quit,

she recommended Hye Won to replace her.

Where's Park Hye Won now?

She quit almost a year ago.

She had a really hard time after what happened to Soon Young,

- and said she was getting married. - Married?

To whom?

I think she said he was a lawyer.

A lawyer.

She texted me about a year ago that she was suddenly moving out.

She said she was moving abroad and asked me to get rid of her things.

She didn't come back for her deposit,

so I called her several times, but I couldn't reach her.

She was in school and argued about every last penny.

I got a text from Hye Won...

that she was moving abroad...

and wouldn't be in touch for a while.

Around when was that?

Almost a year, I think.

Hold on.

Yes, that's right.

But it was odd.

She isn't usually so perfect with her spelling.

It looked like it was from a stranger.

What? There's no record of her leaving the country?

Got it.

This jerk...

He killed Park Hye Won too.

How did Woo Hyung Chul know that she worked at that bar?

Check this out.

This is Woo Hyung Chul from when he was on the news.

I think it'll be best to gather all your opinions...

and then deliver them as a collective statement.

I knew it.

If she had actually struggled to free herself,

there wouldn't just be one clean rope burn...

on the dusty railing.

That means she was hanged postmortem...

and her fingers...

were staged to make it look like a suicide.

The cause of death is strangulation after all.

How did I miss that?

Detective Shin, has Kim Jin Ah's autopsy been completed?

She was Woo Hyung Chul's fiancee?

She was an orphan, so no one knew she was missing.

Everyone believed that she went abroad.

Why did he kill Park Hye Won though?

When Woo Hyung Chul was hired as Sung Yo Han's attorney,

he saw Park Hye Won who testified as Byun Soon Young's acquaintance.

It's when he found out that she worked at the same bar.

What about Kim Young Hee then?

Did he kill her because she's Park Hye Won's friend?

Kim Young Hee worked at the bar first.

She recommended Park Hye Won after quitting.

- That's why he killed her. - Why though?

He's punishing women who doesn't fit his standard...

of the women he views as ladylike.

He saw Kang Min Joo as a gold digger...

after seeing her go into a motel with a man.

He then saw Hong Na Ri with another man...

when she was still legally married to her husband.

Why did he go after Oh Bong Yi then?

He briefly represented Kang Duk Soo...

before another lawyer took over,

so of course he has all the files relating to that case.

Oh Bong Yi was Kang Duk Soo's victim.

It doesn't fit the criteria in which...

Woo Hyung Chul selects his victims.

Why weren't the bodies of...

Park Hye Won and Kim Young Hee on display?

Because he lacked confidence at first.

Once the confidence built inside of him,

he started putting his victims on display.

The missing bodies of Park Hye Won and Kim Young Hee must be found.

Or at least the murder weapon.

That's the only way to prove this man's crimes.

We'll start with Woo Hyung Chul's...

Yes, it's me.

I'll head home first.

("Police Coercion Evident in the Tie Knot Murders Investigation")

- Could I have the prescription? - Sure.

- Here you go. - Thank you.

Let's go.

Mr. Woo,

- you may enter. - Sure.

It was rough, wasn't it?

Leave it to the police to badger an innocent person.

Here's the iron supplement you requested.

It wasn't easy to get this.

How's your wife's morning sickness?

Well, she's doing better.

Wasn't that Choi Hong Ju, the TV producer?

Yes, it was.

Really? I didn't know she was married.

A rumor surfaced after Sung Yo Han's death...

about her being in a relationship with him.

It was me who tipped off the reporter.

I heard it myself while having drinks.

There are tons of other guys in this world.

But why him of all people?

Is that so?

Wait. You found traces of acetone?

Acetone is a chemical that evaporates rapidly...

and it can start a fire even with a small spark.

It's not dangerous like hydrochloric acid...

which is why it's easy to purchase in bulk.

Isn't the cause of death strangulation?

No. If the victim was strangled in any way,

the hyoid bone or the cartilage would've been fractured,

but that wasn't the case.

Nothing might've been fractured if she was strangled...

with an object that's wide like a towel.

Could you perhaps check for a congestion?

Officer Jung, that con...

- A congestion? - Yes. What is it?

Oh, that. When one is strangled,

pressure is applied on the jugular vein.

It stops blood from being pumped to the heart...

which is why one's face turns red.

The external carotid artery in the face and skull...

brings on a congestion in the face.

The congestion in the face leads to one in the skull...

which then leads to one in the centrum.

That congestion is direct evidence of strangulation.

You must've graduated med school.

No, I never went to college.

What? Then how do you know all this?

You just spoke in medical jargon.

Well...

I just happened to know them.

Just like that?

You must be a smart one.

Because Sung Yo Han was a doctor.

Does it mean I killed...

an innocent man?

Woo Jae Pil was probably aware...

of his son's crimes.

Hyung Chul...

Why did he kill my Soo Jin?

Is there anything you can tell me about Woo Hyung Chul...

that could help us?

Hyung Chul's mom tried to kill him and then commit suicide.

Ambulances came wailing for them.

How did she end up getting involved with a killer?

That reminds me. A few days before the incident,

Chang Soo drove Hyung Chul's mom to Guryeong.

Chang Soo?

Hyung Chul's uncle. He lived in the same neighborhood.

He probably still lives there.

(Laboratory Medicine)

- Officer Jung. - Yes?

You were right.

Although faint, I spotted a congestion in the centrum.

It's as you assumed. Someone strangled the victim.

Due to the ash found in her bronchial tubes,

I ruled strangulation out.

I would've missed it completely had it not been for you.

No way, Officer Jung.

I'm amazed.

It was heavily snowing that day.

I took her to a hotel...

and waited in the car.

Darn, it's cold.

She met someone in the hotel lobby.

It seemed like she was pleading.

My sister was swept with anxiety ever since she got back,

but then she asked me to take her to Seoul again,

so I did.

To the same hotel?

No, it was some research institute.

Anyway, after that trip, it was as if her mind went blank.

She almost killed Hyung Chul and then herself...

only to jump from the hospital building later on.

What's with those flowers?

Hydrangeas.

My sister loved purple hydrangeas.

Hyung Chul, being the sweet kid he is,

would visit his mother's grave from time to time.

I see...

that not all are purple. Some are blue.

To get purple hydrangeas,

lime must be sprinkled on the soil.

There must have not been enough.

Blue hydrangeas indicate acidification.

Hold on a second. Acidification?

Doesn't that happen when there's too much iron?

That's right.

What are you doing? Stop!

No, stop. You're ruining the flowers!

Step aside.

Iron is metal which means there could be a murder weapon.

Excuse me.

I'm with the police.

Did your granddaughter ever run away from home?

Jin Ah ran away about a year ago...

and hung out with other runaway boys...

which broke my heart.

She only got back recently...

and was getting her life straight.

Sir, did your granddaughter...

come back home...

after receiving consultation and help...

from someone?

Of course! That wonderful man...

made her see straight and come home.

I see.

Is that wonderful man...

perhaps him?

Yes, that's him!

(Safety for Women)

- Please call me anytime. - Who was that earlier?

He offers free consulting for runaway teenagers at times.

He convinced a lot of them to go back home.

Where's Woo Hyung Chul?

Darn it.

I lost him. There was an accident.

I told you to always keep your eyes on him!

Put him on the wanted criminal list right now.

And track his cell phone and car.

Runaway teenagers and hookers.

He killed women whom he thought were vulgar...

in his standards.

Who's his next target?

Why couldn't I reach you all day?

Dong Koo.

I sent you the script for my wedding tomorrow,

but you didn't even check it.

I called you to give you your suit, but you never picked up.

Oh, right. It's your wedding tomorrow.

You forgot about my wedding tomorrow?

Do you have a death wish? Seriously?

Open the door. Go on.

("Famous Producer Turns Out To Have Dated the Infamous Serial Killer")

I bought this for you because you told me you don't have a suit.

You darn punk. I can't believe you forgot about my wedding.

- I'm sorry. - Let me see.

Gosh, you look totally different now that you're in a suit.

Gosh, you look great in a suit.

- Look. - Why are you taking a photo?

Stand still.

Okay.

Why isn't Seul Ki checking my texts?

She hasn't been answering my calls either.

Dong Koo, I'm telling you. It's not too late.

You really should reconsider marrying Seul Ki.

I swear she'll always desire to be successful as an actor.

Where does Seul Ki live? You need to tell me now.

Hong Ju! Hong Ju!

Hey, what brings you here?

Dong Koo got into a fight with his friend from school.

He's at the police station right now.

Why... Why?

Is he badly hurt? Where is he right now?

If you let me in, I'll explain to you.

- Oh, okay. - Okay.

Come in.

What's up?

Thank goodness.

I just thought...

Seul Ki! Seul Ki, are you inside?

Call 911 and bring a cutting plier from the security office.

Hurry.

You're up.

I was supposed to kill that brat.

But you ruined it all.

I need to keep talking to him.

He won't kill me as long he's still talking.

You killed everyone, didn't you?

Yes. I killed them all.

Why did you kill them?

Tell me the reason.

"The reason"?

It's simple.

I got rid of...

all the vulgar women.

- Did you have fun today? - Yes.

You have such a beautiful smile.

I'd love to have a beautiful daughter like you, Soo Jin.

Don't buy something too sweet.

- Okay. - Come over often.

- Thank you. - Sure.

Soo Jin!

Dad!

Hyung Chul, I'm busy right now. I'll call you later.

Dad!

I think... I think Soo Jin is dead.

"The Boy Scouts taught me..."

"how to do a rescue knot."

"I was just trying it out on her, but I think I made a mistake."

"What should I do?"

I shedded a few tears, and he totally bought it.

Pull my left hand slightly to the right.

Then put my right hand on top.

My acting must've been pretty good.

Your father wanted to believe that it was a mistake.

Honey, I have a feeling...

that Hyung Chul might've...

What? What are you thinking? He said it was an accident!

What's going through your mind?

(The parents of these missing kids are desperately waiting for a call.)

The entire country was focused on the Head Hunter case.

Your father had a great idea.

He put her in the same clothes and shoes as Park Hyun Soo.

As the detective on point,

it couldn't have been hard to get her DNA.

He made it look like she was Park Hyun Soo...

in case she was ever found.

No, no.

It wasn't Dad's idea, it was mine.

- It was my idea. - You killed your mom too, right?

She brought my hair to the now dead and gone Dr. Daniel Lee.

That jerk told her...

that I was a psychopath.

Why did you kill Soo Jin?

Because she looks like you.

She has dimples like you...

and has short pinkies like you.

She's your daughter, right?

You cheated with her dad and had her, didn't you?

What?

Am I wrong?

Fine, then.

Don't worry. I'll go with you.

No.

No.

No.

That wench Park Hye Won was just like my mom.

But she had the nerve to want to marry me?

That's why I killed them. Those lustful and wicked skanks.

I judged them for the deity.

What about the others?

Who?

Oh Bong Yi?

Don't you know why?

You low life. Are you kidding me?

What gibberish is that?

You scumbag.

Song Soo Ho. Kim Sung Gyu. Byun Soon Young.

Jo Mi Jung. Bong Yi's grandma. Why did you kill them? Why?

What are you talking about?

Sung Yo Han killed them.

Don't lie to me. You killed them.

Sung Yo Han took the fall for you and died just like your dad.

You made it look like he killed them to cover up your crimes.

Like someone else killed them. Right?

What are you talking about?

I heard you got brain surgery.

You've gone completely insane.

Don't lie to me! You did it all.

You put Father Ko's cross necklace and Granny's brooch there!

Right?

You crazy jerk.

It really was Sung Yo Han.

It was him.

Here...

Here...

Kill him. Kill him.

You should kill someone like him.

That's it.

More. More. More!

Oh no. I think he died.

How does it feel?

You.

Isn't it exhilarating...

to kill a person?