Original subtitles

(Episode 9. Reset Man)

You and I should give love a try.

What?

Detective Geum!

Are you all right?

What? Oh, yes.

I mastered the act of landing, you see.

Oh, my gosh.

I thought you'd fallen to your death.

I almost did. How could you...

say something so insane somewhere so dangerous?

Are you trying to assassinate me?

Why would you say that? I'm serious.

To say you're serious, don't you think this location...

and situation's way too out of balance?

I put a lot of thought into it.

Dr. Brain coached me.

He said you'd be more likely to say yes if we were...

somewhere dangerous and your heart was racing.

That darn Dr. Brain.

Dr. Brain!

It has been a long time.

Do you know who I am?

Long time no see, Han Yeon Hee.

How's life as a prosecutor?

So-so.

I got nervous, thinking you wouldn't recognize me.

I kept running past you.

How could you not even say hi?

I was busy thinking and didn't see you.

Are you still thinking about brains?

No.

For the first time in my life, I was thinking about love.

And you showed up.

I...

Are you busy?

How about some tea?

Sorry. I don't have the time.

Oh. You're busy.

Some other time, then.

Sure. It was nice to see you. Take care.

Bye.

He's just the same.

And you're still racing.

I have no pride at all.

You're okay?

Oh, yes. I'm just fine.

I had a rough childhood.

Falling off a cliff's nothing.

You saw how I landed, didn't you?

I'm alive.

Since you're alive, I'd like an answer.

Is it yes or no?

Captain Seul. You can't ask someone out so interrogatively.

I'm impatient.

I don't know when I'll go back to my old, timid self,

so I want to make things sure while I'm out of it.

This is just... Listen, Captain Seul.

I really, I just don't get it.

Why me?

You're better educated than me you're my superior,

and you're much better looking.

Why fall for me?

It's your smell.

My smell? I don't use cologne.

Do I...

- Is it... - No. The smell of warmth.

When I was unconscious in hospital,

I couldn't see, sounds rang in my ears,

and I couldn't speak.

But I could smell so well.

Whenever a certain someone came in,

I smelled something nice and warm.

I felt at ease when that person was there.

"This person's really worried about me."

"This person likes me." I could feel it.

At first, I thought it was a nurse.

I realized the truth when you came up to me after I got back.

"Oh, it's the smell from when I felt that warmth."

You stayed to nurse me all night until my mom came, didn't you?

Well, yes, but that was...

I wasn't asking you to like me.

We were colleagues,

and you were there all alone.

I stayed because I was worried.

Then do you dislike me?

No, what am I to dislike you?

Then what's the problem?

Well... Captain Seul.

You know what a huge mess my life is right now.

You don't?

Then don't even go there.

I know.

I know you have a disobedient middle-school senior daughter.

I also know you have an ex...

with a hard-to-handle personality who still likes you.

I know all that...

and still asked because I'm confident I can take it,

so think about it and get back to me.

Will a week do?

Jeez...

Thank you.

Be sure to throw out the first bowl and drink from the second on.

- I will. - Goodbye, then, sir.

- Thank you. - Sure.

It's his day off.

He'll be alone at home.

Shall I ask him out for lunch?

No.

Let's get something and barge in.

What shall I buy?

(Love's in the scent)

(100-percent effective pheromone perfume)

(Imported Perfumes)

Excuse me!

Diamonds are a girl's best friend

Hey, you.

What are you doing?

A parody.

A Sharon Stone...

parody.

Don't. Stop. Freeze.

Why?

Stop!

If you move even an inch, I'll arrest you.

Why? Is this illegal?

Yes, it is. You're guilty of harassing your ex-husband.

My gosh.

Why do you have your shoes on?

(Subsection Chief Kim)

Yes. Hello, sir.

Oh, right.

I'll be right there. Got it!

You can spin them around after I leave.

Spin them around all you want after I leave.

You should see it before you go.

Me spinning my legs.

There!

You have something on your face.

Wipe that off once you're done spinning around your legs.

This is Marilyn Monroe.

Marilyn Monroe? Whatever.

Why won't people leave me alone today?

I'm exhausted.

This beauty mark was supposed to bring me luck. Myung Se!

Gosh, seriously.

What's with this? It doesn't work at all.

Should I return it for a refund?

Joon Young?

Open the door, please.

Joon Young.

You need to eat something.

Joon Young?

Joon Young.

Joon Young.

I won't say anything about you playing the games.

Take this inside and eat it.

Take a break and eat this. You need to eat.

Are you really going to be like this?

Will you starve yourself to death while playing video games?

Don't you think this is too much?

Take a break and eat something. You need to eat!

If you keep this up, I'll break the door down!

How much longer will you keep this up?

How many years has it been?

I can't take this anymore.

If you're going to keep this up, just die!

I don't need a son who does nothing but play video games!

I told you to take a break and eat something. You need to eat!

You even skipped your dad's funeral to play video games. Who does that?

Just die!

Tell your brother to eat something.

If not, I'll pull this down. Tell him he'd better come out.

You're being like this too?

Do you want to see me drop dead?

Enough is enough, please.

It's okay.

I can do it. I'll persuade him to eat something.

I'll be sure to make him eat something today.

Police.

What's your relationship with Ms. Choi Jung Yoon?

Are you her son?

- Yes. - Your mother...

was found stabbed on a hiking trail.

Are you Kim Joon Young?

No, that's my brother.

Is he inside?

Yes.

Why do you ask?

He is the main suspect...

in Ms. Choi Jung Yoon's murder.

We're here to arrest him. Please cooperate.

No, wait!

That can't be. There's no way it was my brother.

He's a homebound recluse who never goes out.

He's been stuck in his room for years. How could he have done this?

He called it in himself.

(Police Line, Under Investigation)

(Forensics)

Kim Joon Young.

Open the door. Kim Joon Young.

Kim Joon Young!

Kim Joon Young!

Open the door.

Why did you kill your mother?

We heard you had been stuck in your room for years.

You mustered up the courage to step out to kill your own mother?

- How do you feel? - Just a comment, please.

- Why did you do that? - Say a few words!

- Why did you kill your mother? - What was your motive?

This hiking trail murder exhibits the patterns...

that are seen in the crimes committed by homebound recluses.

Homebound recluses who isolate themselves...

after struggling to find a job,

being bullied in school or due to family problems are on the rise.

This case gives us a lot to think about.

Reporter Woo Jong Kyun, reporting from Seobu Police Station.

Seobu Police Station?

Did the Neuroscientific Investigation Team get this case?

It's none of my business.

Choi Jung Yoon, age 57.

The preliminary autopsy report states that she died...

from excessive bleeding from the stab wound to the neck.

Her husband died recently.

She has two sons.

Her elder son, Kim Joon Young,

called the police and confessed.

Police, right?

Yes, how may we help you?

I killed that woman.

I'm the one who killed her.

Pardon me? You killed someone?

Yes.

Who is "that woman?" Who did you kill?

My mom.

Where did this happen? At home?

No, not at home.

At first, they thought it was a prank call.

But the mother's body was found on the hiking trail.

She left home early to go hiking. He followed her out and killed her.

He was caught on security cameras?

Yes.

Gosh. I can't tell who's who because of the masks these days.

It looks like the same hoodie.

From the height to the physique, that does look like him.

Oh, there's a witness.

Yes, they're looking for her.

- What about the murder weapon? - They're looking for that too.

What was his motive?

The suspect is addicted to playing games.

A recluse who doesn't leave his room when someone else is home.

He's been stuck in his room for about five years.

Five years?

A homebound recluse left home after five years...

and committed murder?

But why?

His brother said he and his mom had a fight the day before the incident.

Mom told him to just die instead of living like that.

She threw hurtful words at him.

I thought she had gone too far,

and maybe my brother retaliated.

We have physical evidence and a confession,

so why was the case forwarded to our team?

They couldn't get him to cooperate.

His brain seems to be damaged in a way.

You don't become a reclusive loner due to a brain disorder.

It's mostly psychological.

Well,

he keeps claiming to be 17.

Seventeen?

What? But he was born in 2001.

Wait a second. That makes him 22.

Hence the mystery.

I guess we must talk to him.

All right. Name, Kim Joon Young.

Age...

I'm 17.

You're 17?

Did you just say that you're 17?

That's right.

Did being in your room all day make you lose track of time?

What's your resident registration number?

It's 010811-3004197.

I see you don't have that mixed up.

If you were born in 2001, that makes you 22 this year.

You're wrong.

I'm 17.

Why am I at a police station?

Ho Young.

Where's my younger brother?

Mr. Kim, what's the matter?

Take your seat.

When did I get so old?

He really seems to believe that he's 17, but how?

I don't know why or how,

but I don't think he's a reclusive loner.

What can he be if he's not a reclusive loner?

Why does he keep asking the same question?

It's like his memories keep resetting to when he was 17.

A reset?

Maybe my memories were reset as well.

Why else is he popping into my head?

Tell me about it. I'm thinking about him too.

Same here. There's someone I recall as well.

This is boring.

Hello?

Dr. Shin.

Have you been having success...

solving the reclusive loner case?

Goodness, Dr. Hwang.

Even though you're in prison,

you know what's happening in the world.

But I guess you didn't receive this information though.

I am no longer a consultant for the police.

Oh, dear.

Why would you have quit...

what is obviously an interesting gig?

Those police cases form a repository of neuroscience...

that you can rarely access in a lab.

But I guess that's for you to decide.

Anyway, I hope you haven't forgotten about our upcoming meeting.

I'll look forward to it.

It's finally time for me to get down to business.

A repository of neuroscience?

He's right.

The reclusive loner case.

(The reclusive loner case)

(The reclusive loner case)

(Reclusive Loner Murders Mother)

There being no updates...

must mean that they're lost.

Whatever. As if I care.

Dr. Brain.

Dr. Brain!

What was that? Am I hearing things?

Dr. Brain!

It's me.

What is this? Why are you here?

According to you, moving around...

helps the brain function better.

It's why I'm exercising.

What I don't get is why you're here.

I was hoping to run into you.

And I did!

What a coincidence.

Coincidence, my foot.

Aren't you going to exercise? Why are you heading back?

Because it's obviously not in the cards for me.

That's great, then. Let's head inside and talk.

We came across another weird case.

Forget it. It's none of my business anymore.

A reclusive loner who stayed home for five years...

followed his mom who went on a hike and hurt her.

Is that so?

He claims he's 17 though.

He's 22, but he claims that he's 17.

And he seems to actually believe that.

Also, after some time passes,

he asks the same question over and over again.

It's why we're calling him Reset Man.

There seems to be an issue with his memories.

Could he have dementia?

Well, I do have a theory in mind.

Really? No way.

I knew you'd immediately know. What could be wrong with him?

That...

I can't tell you for free.

What? Come on, Dr. Brain.

Must you do this? Dr. Brain!

Okay, fine. I'll get you a gift.

Dr. Brain, I come bearing a gift.

Ta-da. Here's your gift.

Flowers have never been this creepy before.

Get lost.

Okay, fine. It'll be for real this time.

Here. My brain.

I'll donate it.

You're crazy for brain donations.

I'm not exactly crazy for them.

Do you need my help that badly?

Yes, of course.

You should sound more desperate.

Must you be this petty?

Strike that.

Dr. Shin, we are in need of your assistance.

I will allow you access to my brain.

Okay. But first, we have somewhere to be.

What?

All right. Here you go.

This must not have been an easy decision,

so I thank you for your donation.

There's no need to thank me.

I've always been interested in organ donation.

But I made the choice out of the blue...

just to get Dr. Shin on my case.

You heard him. I'm the reason he decided to donate his brain.

I'm sure you haven't forgotten that my contribution has been key...

to Brain Hub receiving the most brain donations.

Yes, I'm aware of it, Dr. Shin.

Now, how about a photo to commemorate the day?

- Sure thing. - Right.

- Can you stand there with the form? - Got it.

Are you all ready?

One, two, three.

We're done.

You two should take a photo too.

- Sure. - No.

Come on, don't be like that.

- Let's celebrate my donation. - Forget it.

- Come on. - One,

- two, - Don't you dare.

three.

Did you get it?

Yes.

I'll send this photo to Detective Geum.

Goodbye.

What is it?

Bye, then.

- Thank you. - Sure.

Sorry.

Oh, my gosh!

Look.

What the...

He's a talented photographer.

Oh Joon Seo, that fool.

I totally see why he rushed off.

Delete it now.

What for? It's a humiliating shot of a celebrity.

I'll hand it down to my grandkids.

Give that to me.

No. I'll look at it and laugh whenever I'm in a funk.

Our Dr. Brain is here.

Hello.

Dr. Brain, you're back!

It's good to see you. I missed you.

I knew you'd help. Come and sit down.

Come into the meeting room.

The meeting will be more fun with you around.

Let's start!

I brought him back. It was me.

Don't they see me?

Why am I at a police station?

Ho Young.

Where's my younger brother?

He keeps asking about his brother...

and insists he's 17 years old.

Shall we first see if he's Reset Man?

Where am I?

A police station?

Why am I here?

These people.

Who are they?

Policemen?

Mr. Kim?

Who are you?

Hello.

I'm Shin Ha Ru, a neuroscientist.

I'm Detective Geum Myung Se with Seobu Police Station's...

Neuroscientific Investigation Team.

Why am I at a police station?

My brother.

Where's Ho Young?

Your brother's at home, safe and sound.

We're investigating your mother's murder.

My...

My mom...

She's dead?

Why am I here?

My brother.

Where's Ho Young?

Your brother's at home, safe and sound.

We're investigating your mother's murder.

My mom...

Is my mom dead?

Yes.

Mr. Kim?

I need to take you somewhere.

(Korea National University Hospital)

A large amount of hemosiderin accumulated in the hippocampus.

It's an old bleeding site.

He suffered brain damage and bled a long time ago.

Then...

that must've caused his symptom.

Based on the symptoms we've seen so far,

he seems to have anterograde amnesia.

It's a rare brain condition where after an accident...

new memories fail to form.

Time stopped for Mr. Kim...

some time when he was 17.

He's been living in that period.

A lot like the main character of the movie "Memento."

Take your time.

A hospital?

Why am I here?

He forgets everything every 30 minutes.

His memory remains at a certain point when he was 17.

When he comes to,

his family members suddenly look different,

and he finds himself in unfamiliar settings.

This frightened you, and you refused to leave your room.

He became a reclusive loner.

So,

did you really have no idea he had...

a memory issue?

I did think something was odd.

He kept asking me how I'd grown so tall.

I didn't think he was sick.

Why didn't you take him to a doctor?

I told Mom, but she said...

it couldn't be helped because he wouldn't leave home.

Your brother's last memory...

is of you and your mom...

scolding him for missing a swimming lesson.

Do you remember that incident.

He got told off so many times...

for missing a swimming lesson.

Wouldn't it be the day you hurt the back of your hand?

I got this...

trying to cook ramyeon.

Around that time, was your brother...

hit on the head...

or pushed into a wall?

I don't know.

I don't remember.

What was your brother's relationship with your mom like...

when he was 17?

It wasn't...

great.

Joon Young was rebellious and...

She was a stepmother?

Yes.

How did you two get on?

Just fine.

We were half-brothers,

but he was like a real brother to me.

Ho Young, I'll ask you once more.

That your brother had lost his memory.

Were you aware of it?

No.

I wasn't.

Liar.

Based on Ho Young's nonverbal signals,

he's most likely lying.

Do you have to make it so fancy?

Anyone could tell he was lying.

He knew his brother could remember only the last 30 minutes...

and pretended not to.

Why?

To frame his brother?

Because his brother can't remember what he did anyway.

It makes him a perfect victim to frame.

Wait. Doesn't it say somewhere they aren't full brothers?

They're half-brothers.

When Joon Young was ten, the victim...

married his dad and brought her five-year-old son.

The suspect on camera is suspicious too.

He heads toward the house with zero hesitation.

An anterograde amnesiac whose memory resets every 30 minutes...

who, on top of that, has never left home in five years?

Could he do this?

He does seem more like the younger brother.

He hasn't forgotten all his memories.

He recognizes his brother.

He'd remember the neighborhood if there wasn't much of a change.

Here's the most important thing. What is the motive?

As for Kim Joon Young, he didn't get along with his stepmother.

But Ho Young had no reason to kill his real mother.

According to the neighbors...

The lady who lives there...

My gosh, she took such good care of her son.

She always tried so hard to get him to eat something.

If I were her, I'd just let him starve himself to death.

The younger one? He's very sweet.

He always greets the neighbors politely.

My gosh.

Ms. Choi was very enthusiastic about her children's education.

It's not easy to support professional swimmers as a parent,

but I never once saw her frown.

And Ho Young always listened to his mother.

That family's only worry...

was Joon Young, Ho Young's brother.

Kim Joon Young has a clearer motive than his brother does.

I believe it was probably Kim Joon Young.

When he called it in, he referred to his stepmother as "that woman."

That shows hostility.

Due to his anterograde amnesia, Kim Joon Young...

kept reminding himself of the bad memories of his mother.

How much longer will you keep this up?

I can't take this anymore.

If you're going to keep this up, just die!

I don't need a son who does nothing but play video games!

You even skipped your dad's funeral to play video games. Who does that?

Just die!

The day before the incident, he was harshly scolded.

That probably triggered his pent-up anger and violent tendencies.

It can happen subconsciously.

I agree with Captain Seul.

Then why did he call it in? He didn't have to confess.

He wanted to turn himself in before he forgot.

So he knows about his memory problems?

I'm sure he has an idea.

Hold on.

It's odd.

The police received the call...

at 6:29am.

We suspect that the incident took place at 5:30am,

which means the call was made about an hour after the incident.

The assailant's memory is reset every 30 minutes,

so he shouldn't have any memory of the murder.

How did he call it in?

We can't assume that he forgets everything every 30 minutes.

I tested it.

His memory resets every 30 minutes.

Some memorable memories could stick around.

That's right. The tests we ran weren't exactly memorable.

Okay, fine.

Let's run another test to find out whether or not...

his memory resets every 30 minutes.

This time, we'll do something very memorable.

Sorry we kept you waiting.

My gosh. It's way past dinnertime.

What do you feel like eating?

How about some short rib soup?

Sure, anything's fine.

Okay. Short rib soup, it is.

All right. Here's your food.

Oh, wait.

Allow me to season your soup for you.

Wait.

It'll be too salty.

Oh, I'm sorry.

I should make it less salty for you.

Hold on. Oh, boy.

Gosh, here.

My goodness. It stinks.

I haven't gone home in three days.

My, it's fermented to perfection.

You see, this can do something very special.

My, look at this.

Nice. Soak it all up.

This fermented sock...

will soak up all the salt.

I should dunk it all the way in.

Oh, my. This is perfect.

What do you think of this test? Are you satisfied?

Yes, it's certainly memorable.

My gosh.

There. The salt is all gone now.

Here.

Eat up.

Eat this?

How could you tell me to eat this?

Right? It's not that appetizing.

He must be starving right now.

If he still won't eat it after 30 minutes, it means he remembers.

Then I'll admit that it was most likely him.

Eat up. You must be hungry.

Joon Young, why did you do that?

What's wrong? You don't have much of an appetite?

No.

See that? He remembers.

I'm sure he remembers what he saw.

That's why he didn't eat the soup.

It's possible that he instinctively sensed danger.

Did you not see the look on Detective Geum's face?

He was all nervous that Joon Young would actually eat it.

He kept flaring his nostrils.

He was practically telling him not to eat it.

Dr. Shin.

This is unlike you. Why are you forcing your opinion on me?

What I mean is that we need evidence. Something more concrete.

The murder weapon, for example.

He doesn't remember what he did with it.

Then how about a witness?

Okay, I brought someone important so that you two can stop fighting.

We found the witness in the security footage.

Come on in.

My gosh. Dr. Shin?

Oh, my. Dr. Shin, I'm a huge fan!

Nice to meet you.

Nice to meet you too, Ms. Witness.

He called me "Ms. Witness."

So cool. I feel like I'm in a movie.

- Are you sure she's that witness? - Yes.

Can I take a picture with him later?

Of course. Before that, there's something we have to do.

Oh, sure.

Yes, that's right. I remember him walking past me.

Do you remember his face?

I didn't get a good look at it.

He had on a mask, and his cap was pulled low.

Please tell us everything that you remember.

Well...

He was wearing a grey hoodie...

and was tall.

Right. What else?

Also...

That's it.

All right, Ms. Big Fan of Mine.

The footage shows...

that you turned around as he passed you.

Why was that?

I'm not sure.

Something must've caught your eye. Maybe he was handsome.

Couldn't that be the reason?

No way. Never.

You're the only one I deem handsome.

You know what is of high quality,

so you must have good observation skills.

Here. Let's try that again.

It could've been an odd behavior...

or something you smelled.

I did turn around for some reason.

I'm sorry. I just can't remember why.

Could I perhaps try that thing?

You will now close your eyes.

Take a deep breath.

You will feel your body relaxing.

Focus on your breathing.

Unbelievable.

Never have I come across a witness...

who suggested a hypnotic interview before.

A rapport was built because she actively volunteered,

which led to successful hypnosis.

The theta waves are already present.

It's last Saturday, 5:55am.

You were on your way to the bus stop...

when you noticed you forgot your wallet,

which is why you were heading home.

Picture that moment.

From a distance, you see the suspect walking toward you.

The suspect is now approaching you.

The suspect is now walking past you.

When you have the clearest view of the suspect,

freeze the scene.

Take photos with your mind...

and look at them closely.

Please tell me in detail...

what you see and feel.

When I glanced at him,

he became conscious of that fact.

He used his hand to adjust his mask.

I think it was to cover his face.

Right. Keep telling me what you see.

I see a stain.

A colored stain.

Blood.

I think it's blood.

I see blood everywhere.

Also,

the smell.

I've always been sensitive to smell...

and can't even walk past a fish stand.

I turned around to look at him because I smelled something.

All right. Try to identify the smell.

The smell of blood.

And...

maybe a restroom?

Alcohol?

I can't say for sure.

I don't know what it is, but it's not pleasant.

It's not what I'd categorize as nice.

I can't breathe.

I'm scared.

Something about him scares me.

Calm your breathing. You're perfectly fine.

You are safe.

An unpleasant smell?

Something that scares her.

It must be the smell of blood.

It must've been Kim Joon Young.

All right. One more.

You both look great.

No way. Thank you so much.

I'd like to ask for a favor.

If you remember...

anything about the suspect, please call us.

Sure.

- Have a good day. - Bye.

Gosh.

Hey, Chief.

Captain Seul said...

that the witness didn't remember anything significant.

Not really.

Forget it, then. Nothing beats a confession anyway.

Don't drag this out...

and hand him over to the prosecution tomorrow.

(Approachable and Friendly Police, Seobu Police Station)

Do you feel remorse?

What was your motive?

Was she abusive?

How do you feel right now?

Why did you kill your mother?

Please say a few words.

- What was your motive? - Please say a few words.

- How do you feel right now? - Move aside.

- Please say a few words. - Look over here!

- Over here! - Please answer the question.

What was your motive?

Please say a few words.

Do you feel remorse?

Please answer the question.

Dr. Brain, why is this bothering you?

A patient with a memory disorder...

who hasn't been out of the house for five years...

swiftly murdered his target,

disposed of the evidence, and confessed.

Do you believe it's possible?

I'm not sure.

But there isn't any evidence that proves otherwise.

A drink is what you need at a time like this.

Hey, it's a Saturday.

How about we both grab a shot of malt whiskey?

Grab the drink with Captain Seul instead.

That reminds me.

That preposterous love confession tactic of yours...

almost got me killed.

She told me how she felt at the peak of a mountain,

and I fell backward.

I almost fell off a cliff and died.

A cliff?

Why are you in one piece, then?

Thankfully, there was a rock underneath.

I was scared out of my wits.

What a bummer. I could've gotten rid of you.

Look here, Dr. Brain.

I bet you gave her that advice just to get rid of me.

Taking one's good intentions and interpreting them as bad.

You just proved you have a brain that is packed with low self-esteem.

(Neuroscientific Investigation Team)

You gave her the advice for my sake?

Of course not.

It was for Captain Seul's sake.

Captain Seul came to you for advice?

I'm quick to notice things,

so I figured it out.

Although, why she likes you...

is worth being studied.

She says it's the smell.

The smell?

The smell of warmth or something.

When she was at the hospital,

I took care of her a bit.

She remembers the smell from back then.

Is she the girl who sees scents?

I don't know if I should believe it.

It's possible. Our brains...

process the sense of smell...

somewhat differently compared to other senses.

Vision, the sense of hearing, touch, and other senses...

pass through the thalamus first before being transmitted...

to the cerebrum.

Let's say that your hand comes into contact with hot water.

The information is given to the thalamus,

which then tells your brain...

that it's hot, that it hurts, and that you should take your hand out.

Gosh, it's hot!

But smells go straight...

to the part of the brain that handles emotions and memories.

That's why a certain smell...

elicits related emotions or memories...

and makes people do certain things.

For example, in "Parasite," whenever Lee Sun Kyun...

smells poverty on Song Kang Ho,

he grimaces subconsciously.

That action causes the mad killing spree...

I thought of a way to identify...

the real killer.

Do your best, then.

Okay.

Okay, then.

The culprit is walking past you.

You smell something,

and it makes you turn to look.

That's right. A smell.

That man...

smelled of something.

What smell was it?

I'm not sure.

What smell is this?

What's this smell?

I don't know.

Is this the smell?

Yes. It's this smell.

The smell of water.

The smell of bleach.

A swimming pool.

I smelled a swimming pool. That's it.

Okay, then.

Think of the appearance of the culprit who walked past...

smelling of a swimming pool.

On the back of his hand.

There's blood.

And...

There's a scar.

The smell of a pool.

The scar on the back of the hand.

The killer's the younger brother...

Kim Ho Young.

(Brain Works)

Memories disappear,

but emotions remain.

Hey, Kim Ho Young!

You left it, didn't you?

It's a dead body.

Let go!

What's the most powerful memory in your life?

The day of the accident.

Could my memory have been distorted?

- Don't come closer! - Do you really want to die?

I'll grant you that wish.

Dr. Brain!