A detective Seon-woo, who moonlights as a private investigator, has a beautiful new client Soo-Jin. The woman asks the detective to take photos of her husband in the midst of having an affair with another woman. When the detective goes to take pictures he discovers that the woman's husband is already dead. Now the detective becomes a suspect. The detective is chased by another detective Gil-ro. He must now set out for the real killer.

Forensic pathologist Kang is assigned to examine the dismembered corpse of a female murder victim. Detective Min points to a fanatic environmentalist, Lee Sung-ho, as the primary suspect. But when Kang’s daughter is kidnapped, a manipulative game begins between Kang and Lee, who holds secrets about the homicide case.