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.
| Title | Air Date | Duration | ||
|---|---|---|---|---|
| Season 1 | Episode 1 | Episode 1 | 2014-04-11 | 60 min |
| Season 1 | Episode 2 | Episode 2 | 2014-04-12 | 60 min |
| Season 1 | Episode 3 | Episode 3 | 2014-04-25 | 60 min |
| Season 1 | Episode 4 | Episode 4 | 2014-04-26 | 60 min |
| Season 1 | Episode 5 | Episode 5 | 2014-05-02 | 60 min |
| Season 1 | Episode 6 | Episode 6 | 2014-05-03 | 60 min |
| Season 1 | Episode 7 | Episode 7 | 2014-05-09 | 60 min |
| Season 1 | Episode 8 | Episode 8 | 2014-05-10 | 60 min |
| Season 1 | Episode 9 | Episode 9 | 2014-05-16 | 60 min |
| Season 1 | Episode 10 | Episode 10 | 2014-05-17 | 60 min |
| Season 1 | Episode 11 | Episode 11 | 2014-05-23 | 60 min |
| Season 1 | Episode 12 | Episode 12 | 2014-05-24 | 60 min |
| Season 1 | Episode 13 | Episode 13 | 2014-05-30 | 60 min |
| Season 1 | Episode 14 | Episode 14 | 2014-05-31 | 60 min |
| Season 1 | Episode 15 | Episode 15 | 2014-06-06 | 60 min |
| Season 1 | Episode 16 | Episode 16 | 2014-06-07 | 60 min |
| Season 1 | Episode 17 | Episode 17 | 2014-06-13 | 60 min |
| Season 1 | Episode 18 | Episode 18 | 2014-06-14 | 60 min |
| Season 1 | Episode 19 | Episode 19 | 2014-06-20 | 60 min |
| Season 1 | Episode 20 | Episode 20 | 2014-06-21 | 60 min |
| Directing | Jo Soo-won | Director |
| Directing | Shin Yong Hwi | Director |
| Production | Hee-Joong Kang | Producer |
| Writing | Kwon Eum-mi | Screenplay |
