Yoon Cheo Yong has been able to see ghosts since birth. Once the ace of the violent crimes unit, seven years ago he lost both his family and his partner in a traumatic incident that caused him to quit his department. Now he works as a district cop, but without any interest or will to engage with the world; “starved for love,” he’s completely lonely. Then one day, he accidentally talks back to the ghost of a high school girl, and things get complicated. The show follows Cheo Yong as he works with his female detective partner and that ghost girl to solve mysterious cases.