Cooperation As Yet Unheard OfDr. Shin Ha-ru is fired after illegally acquiring a criminal’s brain. He volunteers to help Detective Geum Myeong-se's bureau — and to make him pay.
The Most Brilliant Moment
D2
The Most Brilliant MomentHa-ru and Myeong-se's first case involves a famous guitarist and his wife, who turned herself in for his murder. But Ha-ru turns the case on its head.
I Don't Know My Wife's Face
D3
I Don't Know My Wife's FaceA Vietnamese woman is found dead with her face and hands burnt. Her husband suffers prosopagnosia; her best friend has disappeared. Both are suspects.
Things That Are Visible When You Close Your Eyes
D4
Things That Are Visible When You Close Your EyesNew evidence and test results drastically change the face of the case. A killer approaches Ha-ru, saying he wants to donate his brain to neuroscience.
The Girl With The Wicked Spirit
D5
The Girl With The Wicked SpiritA 6-year-old with aphasia gets turned in by her mother. She believes a demon has possessed her daughter to kill — and her husband has paid the price.
How To Be Saved Forever
D6
How To Be Saved ForeverHa-ru exposes the truth before the child’s exorcism can take place. And a tablet reveals some dirt on the detective, much to the doctor's delight.
A Man Cheating With His Wife
D7
A Man Cheating With His WifeHa-ru’s attempt to sully Myeong-se embarrassingly backfires. A man reports his wife missing to the police, claiming a "virtual human" attacked her.
Love, The Basic Instinct
D8
Love, The Basic InstinctAfter a husband's confession, his wife shows symptoms of conversion disorder. Who killed who? Ha-ru gives up his revenge and leaves the department.
Reset Man
D9
Reset ManA suspect whose memory resets every 30 minutes claims he has killed his mother. Ha-ru returns, intrigued by a patient with anterograde amnesia.
Though Memories Fade, feat. How to Forget Bad Memories
D10
Though Memories Fade, feat. How to Forget Bad MemoriesThe stepbrother becomes a prime suspect as the siblings’ harrowing tale comes to light. On his date with So-jeong, Myeong-se gets a call about a body.
A Brain on Trial
D11
A Brain on TrialThe perpetrator who left a mysterious note at the murder scene demands a reduced sentence. Unaware of Dong-u’s plan, Ha-ru appears as a witness.
The Effects Love and Breakups Have on the Brain
D12
The Effects Love and Breakups Have on the BrainHa-ru's statement in court stirs up the media. When he unravels the cause of Kim Mo-ran’s hypersexuality, Myeong-se and So-jeong get tangled up in it.
A Teenage Brain Versus A Psychopath Brain
D13
A Teenage Brain Versus A Psychopath BrainA bleeding boy is found unconscious in I-na's bedroom. All of her friends claim she's the one responsible, and unfortunately, the evidence agrees.
The Best Revenge
D14
The Best RevengeHa-ru helps prove I-na's innocence. As he and Myeong-se's family bond, Ha-ru finally discovers Myeong-se’s flaw, leading to his untimely resignation.
Díl 15
D15
Díl 15Ha-ru learns that his parents weren't killed in a car accident but murdered. To find their killer, Ha-ru must accept a psychopath's dangerous offer.
Díl 16
D16
Díl 16Myeong-se and Ha-ru must play the sympathy game, or else. The hostages will be released if their brain waves sync. Can two heads work better than one?