A new human being type, Connect, whose body repairs itself, is kidnapped by an organ trafficking organization. Part way through the organ harvesting surgery, he suddenly wakes up on an operating table and manages to escape, but he is missing one of his eyes. Then he finds out that he can "see" through his missing eye, which has now been transplanted into a serial killer who is turning his victims into corpse art. Determined to get back what was, Ha Dong-soo (Jung Hae-in) pursues the killer to make himself whole again.