Quiz from God

Seoul fears dismembered bodies. With no clues, a new profiler arrives, and Ji-hoon returns.

A chilling letter arrives with the 6th victim's shocking image, revealing a vengeful killer.

Middle-aged woman killed at home; suspect has rare disease, complicating the case.

Park assault death shows unknown cause. Ji-hoon’s ex, Young-eun, is taken by NIS, confusing him.

Man falls from 10th floor, but cause of death isn't the fall. Wife is suspect.

Hostage-taker dies; DNA found in body leads to disturbing discoveries and a grim truth.

Man with a bomb in his head dies after studio intrusion; no bomb found, mystery deepens.

A school murder by a woman with albinism; she suicides, revealing a 17-year-old hidden truth.

A jogger abducted and found in a coma; rare blood type holders are found dead.

A homeless man is attacked, revealing a monster. Jin-woo is shocked by Ha-yoon’s return.

Ha-yoon escapes BrenTech with Jin-woo's help, but he's now framed for murder.

Framed for murder, Jin-woo escapes with Ha-yoon’s help and faces shocking truths.