Detective Jo is put on the case of a serial killer who amputates the limbs and heads of his victims and mixes body parts – swapping a new part into the body of each new victim. The trail of victims leads to a beautiful young woman, Chae Soo-yeon, the daughter of a famous painter, as it becomes apparent that she knew each of the victims and had dated them in the past. Soo-yeon's past is gradually revealed as she becomes close to Jo. Her only close friend, Seung-min, a doctor she has known since high school, reveals that Soo-yeon had tried to kill herself several times in the past. This apparent fragility is picked up by a painting in her country retreat, which depicts her as Ophelia drowning (a recreation of the Pre-Raphaelite painting of the same name by Millais, seen earlier in the film). The body count mounts and Soo-yeon moves into Jo’s apartment for safety.