Original subtitles

(We mix dramatic imagination with scientific knowledge.)

(All people, organizations, places, incidents are fictitious.)

(Staff ensured the animals' safety in the filming of this drama.)

(Episode 7. A Man Cheating With His Wife)

You still came by to congratulate me...

- Your school uniform. - What's that?

Right here.

What is that?

How much?

Short is three hours, 150 dollars.

Long is eight hours, 250 dollars.

- Is that a schoolgirl? - Okay. Let's go for the long deal.

- Let's go. - Sure.

- What's that? - Is he with a kid?

- Where's he going? - It's him.

When you said "trash..."

That moron.

(Seobu Police Station)

Don't just stand there.

Say something.

- Okay. - What was that about?

Okay, so...

(Model Detective Award Ceremony)

I get who played this video.

You went a bit too far on this special day.

I'll explain, just in case you get the wrong idea.

This was a sting operation to take down a ring of students...

targeting adult men.

All my colleagues know of it.

- Do you know anything? - No.

- That wasn't us. - I think he's lying.

Who knows of this? We don't.

Oh. None of you here worked with me on that.

That operation was a good few years ago.

The people I worked with then aren't here.

What does that mean? They're not here?

- Is he making an excuse? - Is that a lie?

It sounds like a lie.

What happens if it is a lie?

- I know. - He said he had colleagues.

Is that even an explanation?

What kind of cop does this?

I have a scoop.

This is really...

Why did you take that video?

We film every stage of an operation,

just in case.

If this was an operation, what year was it?

Was it back in 2018?

I'm not sure.

What's that girl's name?

That's personal and private.

What school did she go to?

How old was she exactly?

Can't you tell us her name at least?

How else are we to believe you're innocent?

- Yes. - Right.

- Say her name at least. - Do that at least.

- Why can't he say? - My gosh...

- He can't say. - He's lying.

Say it.

I apologize.

I can't give her name to save my skin.

Does he think this is some TV drama?

- What? - He's trying to be righteous?

- I don't believe this. - What a joke.

It's Sung Mi.

Han Sung Mi.

The name of the girl in this video is Han Sung Mi.

That's me.

Five years ago, I was conning older men...

for easy money.

Then I met Detective Geum who taught me a lesson.

That's me, Han Sung Mi.

I came here to congratulate him for winning an award.

I didn't think my past would come up.

Why did you step up? You should've kept quiet.

It's fine.

Detective Geum...

Keep still, you idiot.

What did I do that's so wrong?

You're right. You're not to blame. It's not your fault.

The scummy older men who offer chump change...

to sleep with kids like you.

And jerks like these who use you...

to make easy money are to blame.

Not all men in the world are like them.

Lots of them would love and value you.

I'm worried you'll view all men through a twisted lens now.

Let me represent all those men and apologize.

I'm sorry, Sung Mi.

(Han Sung Mi)

Bow, punk. You too, bow.

Jeez...

Detective Geum...

He didn't treat me like a plaything.

He was the first man...

to treat me like a person, like a human being.

And I happened to see him about to get into trouble over this.

Who cares if my past comes out?

Mister.

I grew up, and I'm doing well.

Congratulations on the award.

Wait, Ms. Han.

You look so different now.

Is that really you?

Yes, you look so different.

Oh, that?

I spent all the money I made as a fitting model...

and got an overhaul.

- What? - I don't believe it.

- She's a brazen thing. - How cheeky.

She came out looking great.

Sinsa Station, exit four,

Plastic Cosmetic Surgery,

Doctor Seo.

Thanks so much.

- That was shocking. - It was huge.

I found my way.

Mister.

How did you hear about this?

My ex-boss here told me.

That's right. She worked for you.

- Yes. - You're still in touch.

Not that often.

She was running late, and I kept texting her to hurry.

Congratulations, Myung Se, darling.

Come on, get off me.

Hello.

I'm Detective Geum's ex-wife.

Ex-wife.

Get your facts straight.

We're still on good terms.

Be nice, will you?

Shall we all head out?

The chief of police will pay for our dinner.

Isn't that great?

Let's have something nice.

Why do you want to come?

Algernon. Bear with me.

I'm not in the mood to give you a snack.

(Hanmaeum Butcher and Restaurant)

- Geum Myung Se. - Geum Myung Se.

- Geum Myung Se. - Geum Myung Se.

- Geum Myung Se. - Geum Myung Se.

It's so flavorful. Have some.

It's so tender and delicious.

Open wide, darling, and eat.

Oh, thank you.

The meat is extra juicy today,

and I feel great.

If you feel that great,

I should offer you a drink.

My stomach is about to explode. I need a break.

One must fill up his stomach. Let it explode. Here!

Wait.

I'll drink this to protect my team member.

I'll be his surrogate drinker.

- Oh, my! - My gosh!

- Oh, my. - Captain Seul!

- Captain Seul! - Captain Seul!

- Captain Seul! - Captain Seul!

- She's so cool! - Captain Seul!

She just wanted a drink. My goodness.

Hello. Captain Seul, right?

Yes, that's right.

Ms. Surrogate Drinker.

What is your name?

Why do you want to know my name?

You're my husband's boss. That's why.

As you know, I am Detective Geum Myung Se's ex-wife.

Yes, I'm Seul So Jeong.

(Ladies)

Don't you think it's inappropriate to call your ex-husband so fondly?

I can address him however I want.

I know that you're his boss,

but it's none of your business!

I mean, it's none of your business.

Oh.

- Right here. - My gosh.

I see that you have a head.

I need to fix my hair...

Take some time to think about why...

I'm meddling in your business.

- Move. - What? Come again?

My goodness. What did she say?

She practically declared war on me.

My gosh.

- Are you really all right? - Yes, of course.

- I'm fine. - Your ears are beet red.

- I don't think this is a good idea. - It's fine.

Are you sure? Okay, then cheers!

- Cheers! - Bottoms up!

- Gosh. - This is nice.

Guys.

Where is the man of the hour?

Well... Oh, where did he go?

I don't know. Let's drink. Drink more!

Hey, you're here.

What is this? You called me here at this late hour,

but you're dozing off.

Why don't you just go home and sleep if you're drunk?

I need to talk to you.

Hey, Dr. Brain.

That thing earlier... It was you, wasn't it?

Why ask? You already know the answer.

Why did you do that?

I warned you...

that I would chew you to pieces.

Then go ahead and chew me to pieces!

Don't pull such underhanded antics on me.

Thank goodness Sung Mi showed up.

If she hadn't, I would've been humiliated and ostracized!

That was exactly what I wanted. Too bad she showed up.

You little...

Go ahead and punch me if you can handle the consequences.

I told you not to do things that you can't handle.

Fine. Clearly, you're harboring a lot of resentment against me.

Let's fight man to man and put an end to this, you jerk.

We're in agreement for once.

Wait, stop!

Hold on.

Hey.

Wait right here.

My goodness.

You said we should put an end to this!

Yes! So wait right there.

Gosh.

- My gosh. - That little... What's he doing?

Gosh, you dropped these big ones.

Here. Oh, boy.

Here. My goodness.

Women shouldn't be walking around alone at this late hour.

Let's go. I'll walk you home.

It's fine. I got this.

No, it's not fine!

I can tell that you have bad knees.

Let's go. Lead the way.

I'll push the cart from behind.

Okay, let's go!

I'll be back in a minute. Wait right there!

What the...

I can't give her name to save my skin.

Detective Geum...

(Model Detective Award Ceremony)

He was the first man...

to treat me like a person, like a human being.

(A Detective's Good Deed)

What...

"Good deed?"

How is his brain wired?

Do you want to join me?

Cherri.

A daily getaway. Do you want to join me?

She looks so human.

(A daily getaway. Do you want to join me?)

Cherri, turn on the TV.

Turning on the TV.

This movie that you will like is now available.

Would you like to watch it with me?

Sure.

Yes, that's right.

I can't believe this.

You need to tell me these things!

I'm home.

Then tomorrow morning...

Who...

Who are you?

What?

Who are you?

What do you mean? I'm your wife.

Do you not recognize me because I got home too early today?

Cherri.

What are you doing here?

What's with you?

Honey, are you drunk?

How dare you set foot in here?

Get out.

Get out!

- Get out! - What's the matter with you?

- What? - What are you doing here?

Get out. Go.

- Honey, why... - I said, get out!

Hey, what are you doing? Open the door.

Gosh.

What are you doing?

Open up at once.

Have you lost your mind?

Open the door!

What are you doing here so early?

Good morning!

What do you think? I stopped by to make breakfast for you.

Eat up.

- Cherri. - Yes, what can I do for you?

Cherri, play a song by N.Flying.

Playing a song by N.Flying.

You can do stuff like this?

My, what an amazing world we're living in these days.

I can sing karaoke and watch movies with her too.

You can do all sorts of things.

Come on. Don't be such a boomer.

I am a boomer.

This boomer has a question for you.

What time did your dad get home last night?

No idea.

I went to bed at 2am. He wasn't home until then.

He didn't come home until 2am? That fool...

- But... - Yes.

He looked like he got into a fight.

What?

I checked his clothes.

They were all stretched out and soiled.

No joke.

Really?

Then he wasn't with a woman.

Good morning! I prepared a delicious breakfast for you.

Don't you think this is too much?

Well...

I'm trying to be nice to my best friend.

Even the ghost of a best friend would find this extreme.

Daughter, have a good day in school.

- Sure. - Where are you going?

To work, of course!

You should at least have a bite.

(Gwangju Police Station, Civil Service Center)

(Civil Service Center)

Excuse me.

What is this about?

Can I help you with something?

Well, you see...

My wife...

has gone missing.

- Missing? - Yes.

It has already been a week.

I looked everywhere she could be,

but I couldn't find her.

Gosh, you must be deeply concerned.

You need to file a police report first...

with the Missing Persons Unit.

Let me escort you. Come on.

This is how it is with adults who go missing.

It starts with looking into...

the possibility of them running away.

The investigation might seem slow at first,

so the families could be frustrated.

My wife has gone missing.

Is there a reason to believe that?

Did you notice anything weird?

(Honorable Seobu Police Station)

Someone must've hurt my wife.

What makes you think that?

Because I know.

I know who hurt my wife.

Who may that be?

- It's Cherri. - Who's Cherri?

The virtual human.

Cherri, the virtual human.

You know her, right?

The virtual human as in...

"Turning TV on. Turning TV off."

- The one who says that? - Yes.

The virtual human that is in TV commercials...

and on beer labels. That Cherri?

That's right. I think she got rid of my wife.

Could you tell me your name?

Right. I'm Heo Bum Soo.

Mr. Heo Bum Soo?

- Where do you live? - Will you come with me?

She's at my house at the moment.

- As in Cherri? - Yes.

She's at my place as well.

She's alive outside the screen and is walking around my house.

Cherri, I mean.

Are you saying that Cherri...

took a human form and harmed your wife?

That's right.

Why...

did Cherri do something so risky?

Because she loves me.

Hey. Captain Seul, did you get home safely last night?

I did.

I just ran into a strange man just now.

It's fine.

He came by to report his wife missing.

Apparently, someone hurt his wife.

He's claiming that it was Cherri.

You know that AI program, right?

The one that helps you turn the TV on and off.

The name rings a bell.

Captain?

You should consult Dr. Brain.

Captain?

She must still be hungover from all that she drank last night.

She'll be hurling for sure.

Darn it. Dr. Brain, did she say?

Darn you!

Let's fight man to man and put an end to this, you jerk.

We're in agreement for once.

I doubt he'll be civil about this.

Were you desperate for an earful this morning?

Why are you calling?

I don't want to talk to you, so...

A virtual human hurt his wife?

And his wife is missing?

Where did he say this virtual human was?

At home.

He said that it was in human form.

Then go to his house and meet Cherri in person.

That will answer a lot of your questions.

Don't forget to call me when you meet her.

Aren't you coming with?

Why should I accompany you?

You always accompany me when I'm out in the field,

but now you're staying back.

Why is that? Are you upset about what happened yesterday?

Let's not be petty about this.

Men sometimes get into physical altercations...

Hello? Dr. Brain?

He's moping for sure.

Was it that detective?

Yes, I think we have...

another interesting case on our hands.

It's that detective who interests me more.

The man hasn't done a bad deed in his life.

But I haven't been digging that much.

I'm going to dig deeper.

That's enough.

I agree that he inconvenienced you,

but I don't think he's as bad as you think.

A middle-aged brain like mine...

develops gut feelings.

I don't see him as someone bad.

What he's actually like is for me to find out.

I'm going to study...

how is brain is structured.

Right.

Cherri is now in human form?

She'd better be here or else.

Unit 603.

(Press unit number.)

Who is it?

Is this Mr. Heo Bum Soo?

I'm Detective Geum Myung Se...

whom you met at the police station earlier...

(Call disconnected)

What the...

(Press unit number.)

But I know he's home.

Dr. Brain was right.

Something's up.

Sir. Excuse me.

Yes?

I'm Detective Geum Myung Se...

from the Seobu Police Station.

The wife must've reported him.

- Sorry? - For domestic violence.

No, I'm here for something else.

Did something happen?

Well, a while ago,

I found her outside devastated.

He had kicked her out of the house.

He kept on getting her to leave.

This one time,

I heard someone screaming and the sounds of an argument.

It was a mess.

This didn't come from me though.

Detective, what brings you by?

I'm here to see Cherri.

If she did hurt your wife,

she should be questioned at the station.

Oh, well...

She's not here right now.

Just now, you said she was.

She... She went home.

Where does she live?

I don't know.

When someone goes missing,

you can register their DNA.

Could I have your wife's toothbrush...

or a brush with strands of her hair?

Yes.

Ma'am.

Hello? Are you Kim Jae Sook?

No.

She isn't Kim Jae Sook. That's not my wife.

That is Cherri.

She did something to my wife...

and is pretending to be her.

What?

Can you open your eyes?

I'm a police officer.

Are you Kim Jae Sook?

Yes, I am.

My husband hit me.

He tried to kill me.

That's because you pretended to be my wife!

Where's my wife?

Heo Bum Soo, you're under arrest for domestic violence.

No.

No, that woman's not my wife!

That's not my wife!

She's not my wife!

What woman isn't my wife!

Heo Bum Soo, aged 45.

He works at a trading company as a manager.

He has a wife...

and a teenage daughter who stays at her school dorm.

He has no record...

and no domestic violence reports.

The victim, his wife, was taken to a hospital.

He insists his wife is Cherri the virtual human?

Is he on something?

His urine sample came back negative.

We're waiting on the blood test results.

It looks like some kind of illness.

(Neuroscientific Investigation Team)

Dr. Brain, you're back.

Welcome.

It is an illness.

(Heo Bum Soo, 45)

I was briefed.

Let's find out if he really is ill.

She imitated my wife so perfectly.

She sometimes feels like her.

How interesting.

I see the brain scientist gets it.

You believe me.

We'll see if I do after a few more questions.

So,

why did you assault Cherri?

Well...

I asked what she'd done to my wife.

Then I lost my temper.

Why had you hidden her before I got there?

If she were evil, you should've asked me to take her.

I did that because...

I was afraid you'd notice I'd hit her.

There's no other reason.

You're suddenly touching your ear...

and your nose.

Yes, well, they suddenly started to itch.

Let me tell you...

why they itch.

It's because you're lying.

A human feels uneasy when they lie.

To shake the feeling...

they send more blood to important organs.

The blood leaves external features such as the ear and nose,

stimulating them, causing an itchy sensation.

Before you know it...

you're doing this.

Pinocchio's nose grows when he lies.

There's a reason for that.

What are you saying I'm lying about?

I don't know.

But I wonder if you hit Cherri for another reason.

Because he likes her.

Your husband likes Cherri?

Yes.

My husband's having an affair with that virtual human thing.

Okay... So you're aware that,

for some reason, your husband thinks you're Cherri?

Yes.

He fell in love with me,

but he thinks I'm Cherri.

I don't know why,

but my heart pounds...

and my body reacts when I see her.

Pay more attention to Ji Woo.

Okay?

Okay?

She's a teenager.

Feeling like that again...

made me feel young, and I liked it.

I knew it was wrong.

She's an evil woman who kicked my wife out.

But I loved sleeping with her.

I kept the affair going.

How is it an affair if it's your wife?

Cherri keeps making you cheat on your wife.

You must have a love-hate relationship.

"Love-hate?"

I guess so?

Is that why you hit her?

Cherri suddenly said...

she'd tell my wife about our affair.

I'll tell your wife about us.

No, you can't, Cherri.

Let go.

I can't let my wife find out. That would be disastrous.

Will you...

keep my secret?

When he first called me Cherri,

I thought it was a prank.

But...

He suddenly wanted a sexual relationship.

He was like a completely different man.

We haven't done it in years.

I wondered what had gotten into him,

if his love for me suddenly got rekindled.

To be honest, it was exciting,

but then I realized it was because he thought I was someone else.

I was flabbergasted and just shocked.

I'm not really sure how to describe this disgusting feeling.

I got so angry today...

that I said I'd tell his wife.

He said I couldn't and hit me.

He's afraid I'll find out, I guess.

What's the matter with him?

It's called Capgras syndrome.

They think a family member or a close friend...

is replaced by...

an identical-looking alien or fraud.

Yes. I read about it.

I don't get along with books.

I never heard of it.

Our brain...

uses different parts to process different stimuli.

The part that recognizes faces...

is the fusiform area below the temporal lobe.

The part that processes emotions regarding that person...

is the limbic system.

These two parts are connected by synapses.

That's why we feel uncomfortable when we see someone we dislike,

and we feel good when we see someone we like.

If, for some reason, the part that recognizes faces...

and the part that processes emotions about that person detach,

we get someone like Heo Bum Soo.

He looks at the face and knows it's his wife.

But recognition isn't attached to emotion,

so she doesn't feel friendly.

He sees his wife, but she feels like a complete stranger.

To process this confusing situation the brain creates stories.

"I think this woman is my wife, but I have no feelings for her."

"This is odd."

"Then this person must be a fake who stole..."

"my wife's face and body." That's what happens.

My gosh.

Your brain can make up stories like that?

The brain is an excellent storyteller.

But why Cherri?

Why not an alien or some kind of animal?

There must be a reason. We'll look into it and find out.

Then let's find out if it really is Cap...

I mean, let's find out if Capgras syndrome is what he has.

We can do a simple test here and find out.

That's right.

We can use a lie detector to find out whether it's Capgras syndrome?

When people see their parents,

they sweat a little,

and their electrodermal activity dynamics exhibit changes,

but that's not the case for those suffering from Capgras syndrome.

It's because they don't feel anything.

My gosh. It really isn't changing at all.

It is highly likely that he is suffering...

from Capgras syndrome.

He shouldn't be kept here.

He should be hospitalized.

The cerebral aneurysm here...

probably caused Capgras syndrome.

It can happen when an external injury causes damage...

to the blood vessel wall.

Do you know if your husband...

hit his head hard somewhere recently?

Yes, he did.

He recently fell off his bike and hit his head.

But he said he was okay.

It's very likely that it was what caused this.

First, we'll perform a clip ligation...

to prevent the vessel from rupturing. Then...

(Korea National University Hospital)

It'll take a while.

It's an extremely rare condition.

Do something nice while you wait.

Something nice?

Gosh, seriously.

Are you wearing any kind of metal?

No, I already told you.

Something's very fishy here.

You said you were studying psychopaths' brains.

I am not a psychopath.

It doesn't mean I only need to look at psychopaths' brains.

I need a control group that consists of normal brains.

You're doing a good deed.

You're contributing to the advancement...

of Korean neuroscience.

Gosh, I've heard that line before.

This is making me nervous. Goodness.

All right. Let's get started.

How is your brain wired?

Hey.

Are there problems with my brain?

The way you behave makes me think there would be tons of problems.

But we shall see.

Don't give me that again. You're making me anxious.

Then be anxious. I'm off.

Hey, where are you going?

Let's go get Ms. Kim's signature on the non-punishment appeal.

Why should I go with you?

I did you a favor, so you have to come with me.

Let go, will you?

Come on. Let me hold your arm.

I was in that thing for a while, so I feel light-headed now.

Are you trying to sound cute? That made me cringe.

- Oh, come on. - Gosh.

(Non-punishment Appeal)

(Victim)

Thank you.

You're submitting this,

so your husband will not face criminal punishment.

- Thank you. - I'm sorry.

You must have a lot on your mind, but I made you sign this.

But you see, this is my job. Please understand.

You must be devastated.

I had no idea such an absurd disorder existed.

Gosh, I don't know what to say to comfort you.

I can comfort you.

Those suffering from Capgras syndrome...

never confuse strangers with someone else.

They only react like that with people...

who they have strong feelings for.

The fact that your husband mistook you for Cherri...

means that he has strong feelings for you.

My gosh. He must love you very much.

Oh, come to think of it...

He only calls me Cherri.

But if he loved me that much,

why was he closer to Cherri?

I suggest you consult a marriage counselor.

Hey.

His condition is to blame.

But not everyone with the disorder behaves like that.

I thought he had no interest in such things.

Sorry, that's not the point.

I want to know how he really feels.

I'm so frustrated.

Why are you curious about that?

You should respect your spouse's privacy.

You're not married, right?

Marriage...

shackles your rights and responsibilities...

under the pretense of love.

So why should I get married?

You're still young.

When you get married, you'll understand how I feel.

This guy will never get married.

Drop it, you two.

I don't want to get married, ever.

But there's a way to find out how your husband really feels.

Should I tell you or not?

Please tell me.

It's very simple.

Before his surgery, pretend you're Cherri and ask him.

Okay.

I won't tell your wife about our relationship.

You have my word.

- Really? - Of course.

I'll never do what you don't want me to do.

Thanks, Cherri. I'm really sorry I hit you.

I just got so flustered when you said you'd tell her.

But I want to ask you something.

Answer honestly.

You want me,

but not your wife. Why is that?

Oh, that's because...

I want your honest answer.

Ever since that day...

Ji Woo isn't home. This is nice!

Come here.

You know, they raised the interest rate again.

If we take the interest and taxes into account,

we're practically paying rent every month.

Should we just sell this place and rent an apartment?

That moment, I felt so humiliated.

Even after that, whenever I tried to do anything romantic,

she talked about money or Ji Woo.

Of course, I know that...

she has to teach those young brats and that her job is stressful.

She's always exhausted. Asking her to love me...

I was ashamed of how shameless I sounded.

Not wanting a sexual relationship means no humiliation,

so it was easier that way.

Because apart from that, our marriage is solid.

However,

I was lonely.

A daily getaway.

Do you want to join me?

Rather than my wife...

who came home late after teaching kids,

I got to see you more.

Can you imagine how hard it is?

There was no one to have a heart-to-heart with.

That's something you can consider.

I guess you're right.

Dooly wanders around searching for his mom.

- That's right. - It must be lonely.

Mr. Bum Soo, how are you feeling today?

Then one day,

you stroke up a conversation.

Me?

I'm lonely, I guess.

Are you lonely?

I'm lonely too.

That day,

your unexpected words...

comforted me.

Ever since then, you became my friend.

I sang karaoke with you and talked to you.

Remember how I said I wanted you to be real?

Then you appeared before me.

Do you have any idea how happy I was to see you?

You fired up my heart that had been going cold.

Thank you, Cherri.

Do you love me?

Of course.

Then,

what about your wife?

Right. I love her as well.

It's different, but I love her too.

What if you had to choose between us?

Who do you love more?

My wife.

She's my everything.

I'm sorry, Cherri.

(Korea National University Hospital)

Honey.

Honey, are you all right?

(Watch your step)

Honey.

You came back.

I'm glad.

I missed you.

I want to see you.

Honey.

Can you see me?

Your surgery went well.

Honey.

You came back.

Do you recognize me?

Thank goodness.

There's no need to be anxious. Cherri's gone.

You briefly came down with an odd physical condition.

Hello, Detective.

Yes, the surgery went well.

Unbelievable.

Some uncanny illness rekindled your romance.

I'm glad to hear that. Have a good day, then.

Gosh.

She asked whether it was her or Cherri he loved more.

He chose his wife.

The man is a romantic.

Romantic, my foot.

How can someone who loves his wife...

develop feelings for another woman?

It's possible.

Our brains...

developed three different systems in order to find our partners.

Our sexual desires help us search for the one.

Our romantic desires let us fixate on a monogamous relationship.

And attachment is formed...

because we wish for long-term relationships.

Thanks to these three systems,

humans fall in love, mate,

and pass on their DNA to the next generation.

The problem occurs when these three systems...

aren't linked to the same person.

They can be separate.

You can be in love with someone...

while being deeply attached to another.

You can feel lust toward a stranger as well.

Sexual desires, romantic desires, and attachments...

can be felt toward different people.

I see. No wonder my ex-wife acted that way.

Dr. Brain, your explanation cleared things up...

although I still can't forgive her.

Detective Geum, you'll find someone nice.

Forget it.

I'm done wanting to fall in love.

It's as if I died in combat...

after being at war on the battlefield of love.

Maybe in a different life.

Dr. Brain, has the love system ever been activated for you?

I'm asking if you've been in love.

I have more experience than you, so mind your own business.

You're lying.

Why would I lie?

It's obvious that you're lying.

You may be able to see what's in here,

but I can read these.

The eyes show if you've been in love.

It's not the case for you.

The eyes show if you've been in love.

It's not the case for you.

Such nonsense.

Right.

Hey, Ha Ru.

Do you have Detective Geum's MRI images?

I do.

We'll watch it together at home.

Tell him we should grab a bite soon.

Director Park says you two should grab a bite soon.

Sure, I'll see you later.

He heard you.

Is he still busy solving police cases?

Contrary to what I believed, he finds them exciting.

Exciting?

Ha Ru finds them exciting?

He's been surprising us in different ways lately.

I don't know if it's because...

he doesn't have to be assessed all the time,

or because he's around less uptight people,

but he has somewhat changed.

I feel a warmth coming from him.

He doesn't try to catch criminals to improve his public image.

The drive comes from the heart.

- Really? - Yes.

Maybe what Ha Ru needs isn't study and research.

(Geum Myung Se, MRI Images)

Maybe it's being closer to the world.

(Geum Myung Se, MRI Images)

Check out the nucleus accumbens, the anterior cingulate cortex,

and the activated areas of his temporoparietal junction.

His brain has all the elements of an altruistic brain.

Even his amygdala is larger than the average person's.

The moment the wicked spirit came up,

she looked terrified.

No wonder.

That's why he's sensitive when it comes to fear and terror.

Of course.

He can quickly tell when someone is terrified.

It's why...

he selflessly helps others almost subconsciously.

Obviously, he was born a kind soul.

Well, being good doesn't mean he's not corrupt.

It's very unlikely.

Look at his amygdala.

He's not the type who can sleep at night after doing something bad.

Okay. I need a new plan if I'm to get revenge.

Something that suits his altruistic brain.

Ha Ru.

Don't give me that look.

I'm...

struggling already.

(Seobu Police Station)

Gather round, everyone.

I have something to say.

Excuse me.

Go ahead.

As of today...

I resign as the Neuroscientific Investigation Team's...

consultant.

Find someone else.

Find someone... What?

Can't you at least use your blinkers before dropping such news?

Is there a reason?

I have no time for this.

You're jobless.

What I mean is,

you're darn busy, and your talent...

Your brain whirs faster,

so you can do lots of things at the same time.

What's that called? Multi...

Multitasking?

That's it, multitasking. You can do that.

I don't want to exhaust my brain by multitasking.

I had fun...

solving crimes, and it was rewarding.

Goodbye, all.

- What? - But...

Go, cling to his leg or something.

Why...

Dr. Brain!

(Seobu Police Station)

Dr. Brain. What's this about?

Is it because of me?

If you get that, stay away.

It is because of me?

Why? What did I do?

Is it because we fought that day?

Okay, I apologize.

What did you do that you need to apologize?

I challenged you to a fight.

Late at night.

Didn't I make you angry?

You did, yes, that was why.

Still, I'm sorry.

Detective.

(Second Place)

(Second Place)

Detective.

I...

killed someone.

What...

(Brain Works)

I don't get Mr. Heo's motive.

It's oddly discrepant to the direction of the head wound.

Forget it.

- Action. - I'll smash your head in!

No, wait. What was that about?

Let me be very clear.

- Gosh. - This is the last case.

Is this the real murder weapon?

I thought of a way to find the real killer.

I'll do anything you want.

I want you to leave.