A psychopath's ruthless serial murders have left the entire nation gripped with fear and chaos. A honest and justice-seeking rookie police officer and a veteran detective with tragic past, face against the killer. After the encounter with the psychopath, their lives totally change.
| Title | Air Date | Duration | ||
|---|---|---|---|---|
| Season 1 | Episode 1 | The Head Hunter | 2021-03-03 | 70 min |
| Season 1 | Episode 2 | Eye for Eye | 2021-03-04 | 70 min |
| Season 1 | Episode 3 | Resurfacing Murder Cases | 2021-03-10 | 70 min |
| Season 1 | Episode 4 | Who Are You? | 2021-03-11 | 70 min |
| Season 1 | Episode 5 | The Live Broadcast | 2021-03-17 | 70 min |
| Season 1 | Episode 6 | The Donkey and Goat | 2021-03-18 | 70 min |
| Season 1 | Episode 7 | Memory Loss | 2021-03-24 | 70 min |
| Season 1 | Episode 8 | Ba Reum's Memories | 2021-03-25 | 70 min |
| Season 1 | Episode 9 | Ba Reum's Brain | 2021-03-31 | 70 min |
| Season 1 | Episode 10 | Sung Yo Han in Me | 2021-04-01 | 70 min |
| Season 1 | Episode 11 | Kill Him! Kill Her! | 2021-04-08 | 70 min |
| Season 1 | Episode 12 | The Yo Han in Ba Reum | 2021-04-14 | 70 min |
| Season 1 | Episode 13 | DNA on the Weapon | 2021-04-15 | 70 min |
| Season 1 | Episode 14 | The Cat Killer | 2021-04-21 | 70 min |
| Season 1 | Episode 15 | It Was All Me! | 2021-04-22 | 70 min |
| Season 1 | Episode 16 | Episode 16 | 2021-05-05 | 70 min |
| Season 1 | Episode 17 | Episode 17 | 2021-05-06 | 70 min |
| Season 1 | Episode 18 | Please, Give Me Some Time | 2021-05-12 | 70 min |
| Season 1 | Episode 19 | Kim Joon Sung's Laptop | 2021-05-13 | 70 min |
| Season 1 | Episode 20 | Ba Reum's Final Call | 2021-05-19 | 70 min |
| Directing | Choi Joon-bae | Director |
| Directing | Kang Cheol-Woo | Director |
| Writing | Choi Ran | Screenplay |
| Directing | Sung Chi-wook | Co-Director |
