A series of black garbage bags containing dismembered body parts start appearing around the city, leaving the victims nearly unidentifiable. Detective Cho, a burnt-out cop trying to redeem himself, leads the investigation with his partner, Detective Oh. They uncover the killer's surgical precision and suspect the involvement of a doctor or biologist.
The case takes a turn when Cho links the victims to an artist, Chae Su Yeon, but the motive remains
