(Characters and incidents used in this drama are fictitious.)
This boy is Ma Do Nam's son.
Don't touch my son's body!
Isn't this suicide?
We have the answer right here. It was school violence.
It was obviously a murder.
Ma Sung Jae always did better than Park Jun Ha,
so Jun Ha always came second in his year.
If we have estimated time of death,
- we have the whole puzzle. - Puzzle?
Traces of murder.
What are you trying to pull?
(Episode 17)
Why would my son kill himself? Why?
What do you know?
What... What do you know?
My son wouldn't commit suicide, you jerk!
Stop talking nonsense!
Why would my son kill himself? Why?
Please calm down.
Calm down? Do you think you could if this happened to you?
You never think about the others, do you?
You're one selfish scumbag by nature!
- Stop it. - Why should I stop?
You concluded that it was suicide based on...
- the estimated time of death? - It's estimated time of death.
Gastric emptying time is different for everyone.
How can you conclude only based on that?
He was a 16-year-old boy.
He had 180g of white rice cake and 200cc of milk.
The margin of error is within 30 minutes.
- He was alone when he fell. - Did you witness it? Did you?
We checked it with the CT scans after eating the same meal.
You stay out of this.
Dr. Ma, please calm down.
How could I calm down, sir?
It's not true. This is all rubbish!
You should just file a negative autopsy, you jerk.
But you don't want that, do you?
That's why you're forcing it to be a suicide!
- Let's trust Dr. Baek for now. - Trust him? Why would I?
You always side with that jerk!
But I cannot trust a single word from that jerk!
Go back to work.
My goodness. Seriously. What's going on?
What happened?
The lunch Sung Jae had...
was found in his duodenum, not his stomach.
That means that four hours had passed after the consumption.
Four hours after his lunchtime?
That day, Sung Jae had a late lunch. He had it at 4pm.
So four hours after his lunchtime is...
8pm.
He was alone then.
That's why it's presumed to be suicide.
- This is Eun Sol speaking. - Prosecutor Eun.
You must come to Gangdong Police Station now.
What are you doing?
Hey.
- Hey, hey. Are you Park Jun Ha? - What are you doing?
Gosh, who are you?
Honey, stop it. What's wrong with you?
What's wrong with me?
You know that our son didn't commit suicide!
I'm going to get to the bottom of this.
I won't let those jerks get away with this.
- Okay, but we can't do this here. - No.
Honey.
(Park Jun Ha)
Park Jun Ha.
You pushed Sung Jae, didn't you?
- Tell me the truth! - What are you doing?
Have you gone mad?
Jun Ha, are you all right? Did he hurt you?
Tell me the truth. You pushed my son!
He didn't push anyone! You're unbelievable.
You think only of your son.
How could you be so shameless after killing my son?
- Your son is a murderer. - What? "A murderer"?
What did you say? How dare you call my son a murderer?
You must've lost your mind!
Jun Ha had nothing to do with Sung Jae's death!
- Sir, you can't do this here. - What? What did you say?
Please don't do this here.
Ma'am, please stop your husband.
How is this a school?
My son died, but no one cares about my son's death!
How could this be a school?
No one is taking responsibility for it!
And you call yourselves human?
This is it. The tenant on the fourth floor...
noticed that someone kept throwing cigarette butts from the rooftop.
It almost started a fire when it caught on the laundry.
The tenant installed the camera to catch the culprit.
After hearing about the incident, the tenant played the video.
And this was recorded.
- What is it? Let's watch it. - Okay. Here it is.
- Hey... - My gosh.
Hey, hey. Play that again. What was that? I didn't see it.
- Okay. - Play it again.
Oh, dear.
The NFS' estimated time of death was correct.
Sung Jae...
- fell when he was alone. - Does it mean this is a suicide?
Now, we have to close the case as so.
- Calm down? How could I calm down? - Please calm down.
You don't know anything. You know nothing!
- You don't know anything. - We got it.
Please calm down. Why don't you sit down and talk?
A lunatic like him was making a big scene in front of a school.
Now, I don't feel comfortable sending my son to school anymore.
A lunatic?
Your son is a murderer. Do you know that?
Prosecutor Eun.
Please. Please reinvestigate the case.
My son isn't the type who would commit suicide. He'd never.
I won't let this slide.
My husband is furious right now. We're going to file a lawsuit now.
Dr. Ma.
For the time being, we're investigating based on...
the estimated time of death from the NFS.
I'm letting this go for Sung Jae's sake.
We could've filed charges for assault.
I'm sorry.
You think you're the only one suffering?
I'm about to lose my mind too.
I'm sorry.
They said Jun Ha and the others went down before Sung Jae.
It drives me crazy to not know what had happened to our son.
I'm sure he didn't commit suicide.
But there's nothing I can do for him.
I just checked the security camera.
Sung Jae did fall at 7:50pm.
- Suicide... - I didn't confirm it as suicide.
- What? - We can only rule out homicide...
since he fell when he was alone.
But we can't rule out accidental death.
Then are you saying he was goofing around on the rail...
- and missed his footing? - That's not it either.
- If he did, 5m is too far. - What is it that you want to say?
Hey, you. Talk.
Hey, Jin Dol. Stop eating, and talk to me.
Isn't this your fourth year at the NFS?
Schooled dogs can recite letters during their third year.
Shouldn't you be able to classify deaths during your fourth year?
What? I'm just asking him for an opinion. Am I not allowed to?
We call this a second opinion...
when we seek out an opinion of another expert.
Seek out all you want.
Good luck with that.
I'm doing fine.
In many ways.
My goodness.
It did seem like he'd gone pretty insane.
He managed to solve problems after staying up all night for a week.
A zombie by day...
and a studying machine by night. That crazy idiot.
Are you boys done?
- What are you doing? - Go out now.
I have to clean up.
Little boys.
- It's me. - You're slacking off...
after making me do all the work, right?
No, I'm not.
It sounds like Sung Jae was bullied and left out in school.
Left out?
I can smell something.
- Where are you right now? - What? Boys' restroom.
That's why it smells.
- That's not what I mean. - I'm hanging up.
Hello? Hey.
Gosh, he always hangs up on me.
Prosecutor Eun. It's about Sung Jae.
(National Forensic Service)
(Letter of Resignation)
What is this?
I apologize, Director Park.
Chief Ma.
You can go on a leave. Get some rest and...
Sung Jae wasn't someone who would kill himself.
I'm going to prove Dr. Baek wrong...
and make sure he never sets foot in this field ever again.
Yes?
Hello.
You said it's about Medical Examiner Baek Beom.
I remembered what you said at the National Forensic Service.
Will you stop?
You killed with those hands!
I was quite upset at that time.
I want to prove that his autopsy result is wrong.
Hello.
This is Professor Pyo Yoo Seong of Forensics at Hangook University.
I believe you two are acquainted.
It's been a while since we've met at the symposium last year.
Yes, it's been a while. Thank you for coming.
Have a seat.
I received all the data.
I can't come forward myself.
That's why I need a second opinion.
I will look through thoroughly and objectively.
My son would never commit suicide.
He bought this with the money he saved up for a year.
It was delivered on the day of his burial.
He must've been waiting for that.
Death by falling is...
the hardest to prove that someone was murdered.
I've seen thousands of bodies that have died from falling.
I understand it's hard to prove that he was murdered with a crushed body.
You're correct.
Those jerks came up with a meticulous plan to kill my son.
Prosecutor Eun. It's about Sung Jae.
It looks like he was bullied and left out in school.
(Ma Sung Jae)
Come in.
Are you staying up all night again...
with help from that mixed caffeine drink?
That's my seat.
If you mix all 3 of those, it'll be over 1,000mg of caffeine.
Did you want to be top of the class that badly?
Or did you want to be like Sung Jae?
You take the same nutritional supplements as him,
and you study with the same reference books that he used.
(Modafinil, methylphenidate, benfotiamine, albumin)
("English", "Economy Concert", "Math Basics", "Archaeology")
("Literature", "Analects of Confucius", "Society and Culture")
("Workbook", "Second Language", "Physics 2", "Earth Sciences 2")
You felt inferior to him...
because you always got beaten by someone younger.
What do you know?
But it wasn't just you.
All the students in this school...
were jealous of Sung Jae.
But you didn't kill him. Right?
I am sorry...
that I suspected you.
I just wanted to know what had happened on the rooftop.
I was upset.
Everyone took his side...
and even cheated just because he was the top of the class.
(Midterm, period 1)
On that day, as we were taking the test,
Sung Jae suddenly collapsed.
Sung Jae!
So I was kind of excited that I could finally be...
- the number one. - Hey, you might become the top.
Exactly.
Sung Jae's done for. Why did he suddenly collapse?
- Congratulations in advance. - Forget it.
Hey, this is huge.
Sung Jae is allowed to take the test in the nurse's office.
- What? - Then I suddenly heard that...
Sung Jae was allowed to take the test in the nurse's room.
They gave him special treatment just because he's the number one.
Hey, the guard is gone. Let's go.
Hey, go get Sung Jae.
I got really angry, so I took him to the rooftop with the guys.
Why do you get special treatment? Do you think you're a big shot?
Look at how pathetic he is.
What's in that head of yours? Let's factorize what's in there.
You take drugs every day, right?
Your mom always brings them for you.
Why do you get sick even after taking so many drugs? Why?
Sung Jae.
Next time, try to play fair.
It's cheating to take the test alone in the nurse's office.
Okay. I understand.
We just swore at him for a bit, told him to play fair,
and then came back down.
He's the one who cheated first.
I just wanted to scare him a bit.
Did he really kill himself...
because of me?
No, right?
Was it really because of me?
What are you looking at?
Do you have your car here?
- I do. - I need to go to the NFS.
You can go, then.
Hey.
I'm asking you to come with me.
The result of Sung Jae's toxic substances test came out.
May I ask you something?
What?
Do you really talk to dead bodies?
Are you hiding something in your home?
Do you have a dead body in your fridge or something?
It's so hot.
Hand.
- What? - Put your hand back in.
It'll get cut off if you get into an accident.
And when you drive, wear flat shoes, not heels.
(Simultaneous)
What are you doing?
Watch out.
I couldn't wait to hear the results.
Gosh.
- What's this? - Pinpoint pupil.
His pupils are small.
Pupils dilate when one dies.
This is the opposite. His pupils constricted.
That's...
Itchy boils.
They're all symptoms of a narcotic addiction.
What? Narcotics?
I've never seen this much toxic in a teenager's body.
I mean, what kind of a high school student takes this much drugs?
Doctor...
Sorry. I got a bit upset.
Sung Jae had...
toxins the like of what you'd see in an ICU patient.
We detected over 10 substances.
I think it's a mix of western, Chinese, and folk remedies.
Armodafinil, diazepam, phenamin, methylphenidate,
atomoxetine, albumin, zinc extract, and caffeine.
Then the Chinese medicine. Baekboksi, seokchangpo, ginger.
What's really odd was,
I found seal, loach, sturgeon extract,
- red ginseng, wild ginseng... - Wait.
You found all that in Sung Jae's body?
And many more.
What are you saying?
Most substances were stimulants, tonics,
or protein supplements.
I found something odd.
Methylphenidate and armodafinil.
Wait. What and what?
They're components of ADHD medicine.
In the past,
some countries gave them to soldiers or pilots.
It improves concentration when on duty for long periods.
And suppresses fatigue.
Does a high-school senior stand guard? He's no soldier.
It makes human an aggressive zombie.
And this.
Amphetamine.
(Medicinal substance tests)
It's a narcotic stimulant.
The cause of pinpoint pupil and the itch.
It's illegal to import amphetamine stimulants.
Side effects include visual and auditory hallucinations,
and you build a tolerance or get addicted.
If it was this bad, it means he took actual narcotics too.
Some US hospitals use a tapering drug.
- It could've been smuggled in. - It would've been worth it.
It's very effective at stimulating the central nervous system.
1 pill contains 3.13mg.
Sung Jae's samples showed a reading of 30mg.
That means he took 10 pills at once.
Prosecutor Eun, about Sung Jae.
He didn't sleep for a week...
and managed to stay up and sit the exam.
His nickname was Daytime Zombie and Nighttime Study Machine.
They were studying for exams.
The kids said Sung Jae studied all the time and never slept.
- He was always zoning out. - It was the side effect.
If he took these kinds of drugs for an extended period,
his liver would be severely distressed...
and his central nervous system would've been a mess.
- The worst side effects are... - Hallucinations and delirium.
The kid was sick.
Did the drugs kill him?
We can't say for sure.
He took them for a long time, not just a few times.
It'll be hard to pinpoint the correlation...
- between the drugs and death. - It was exam week.
He could've taken more than usual.
How will you prove that?
They dragged him with them.
What if he took the drugs with him?
Show me the video of the kids in the elevator.
Sure.
Look.
You're right. There's something in his pocket.
He could've taken them on the roof.
There were no pill bottles among Sung Jae's belongings.
There's a possibility that he fell willingly,
but we're not sure if it's suicide.
There's evidence that he took drugs,
but we can't prove the correlation with his death.
Does that mean it's an open verdict?
Can you tell his parents that you don't have a conclusive answer?
Is that your conclusion?
- Lieutenant Cha. - What?
We have to go to Sung Jae's crime scene.
What? What for?
To find the pill bottle.
A what? Why?
Call Forensics for their help.
Help? To do what? Why are you guys...
You can't all get into my car. Stella, sit up front.
Stella, up front. Not you.
I didn't see you.
Sorry, Stella...
Stella, how about...
after we find the bottle, we get something to eat?
Just us two.
How about some meat later?
- Yesterday was slaughter day. - Was it?
The meat will just have come out of rigor mortis.
Fantastic. Let's go.
Just have what?
- Let's see... - Excuse me. Hello?
This side...
Gotcha.
- I found it. - Over here!
How did you find it?
Hang on, what...
It drives me crazy to not know what had happened to our son.
Can you tell his parents that you don't have a conclusive answer?
It was exam week. He could've taken more than usual.
How will you prove that?
I don't care about that jerk.
I hope we scared some sense into him.
- Did you see how scared he was? - That should be enough.