Two rival detectives with different methods try to solve the murder of a missing girl after discovering her mutilated body in the tidelands of Incheon.

When a school girl disappears, suicide is suspected, and one of her classmates is suspected of having goaded her into it.

In Cheonan, a serial murder case takes place, but the case becomes more and more of a mystery. Only Tae-suk, a cop, immediately senses that all the cases are by…

Hwang Shi-Mok had brain surgery when he was a child, which caused him to lack emotion. Now, Hwang Shi-Mok works as a prosecutor. He is rational, but cold and lonely….