Someone brutally murders Young-hoon’s wife. A hair sample was found on his wife’s body and the detectives use it to trace it back to his friend Joon-sung and locks him up. Seemingly becoming a murder’s wife overnight, Da-yeon asks Young-hoon to testify on his behalf but when he doesn’t show up for the trial, she goes to visit him at his house.
You can now watch The Culprit online on the following streaming providers in the United States.
| Directing | Koh Jung-wook | Director |
| Writing | Koh Jung-wook | Writer |
| Production | Lee Sung-jin | Producer |
| Production | Lee Se-ri | Producer |
| Production | Do Sang-hyun | Producer |
| Sound | Jang Cheol-ho | Sound Supervisor |
| Editing | Moon In-dae | Editor |
| Costume & Make-Up | Seo Eun-kyung | Costume Design |
| Costume & Make-Up | Lim Eun-young | Makeup & Hair |
| Art | Lee Min-hui | Production Design |
| Sound | Jeong Yong-jin | Original Music Composer |
| Camera | Kim Dong-cheon | Director of Photography |
| Visual Effects | Choi Jin-seob | VFX Supervisor |
| Visual Effects | Park Gi-do | 3D Supervisor |