Gap Dong
20 years ago Moo-Yeom’s father was a suspect in the "Gap Dong” serial murder case. Because of the detectives’ oppressive investigation, Moo-Yeom’s father killed himself. Now, Moo-Yeom is a detective and works to capture the killer Gap Dong. The statue of limitations has expired for the serial murder case and Moo-Yeom resigns to the belief that Gap Dong is dead. New clues though for Gap Dong appears in front of Moo-Yeom and he sets out to catch him once and for all.
- Genre: Crime, Drama, Mystery
- Studio: tvN
- Keyword: detective, investigation, psychopath, murder, serial killer, mad dog
- Cast: Jeong In-gi, Jo Min-jun, Yoon Sang-hyun, Kim Min-jung, Sung Dong-il, Lee Joon