Sung-Bum is a hot-tempered detective who relies on his intuition to crack cases. He rarely comes across a case that he cannot solve. The body of a police officer is then discovered in a burned out car near an abandoned building. Drugs are also found near the dead officer. To catch the killer the police department sets up a special investigation unit for the case. Sung-Bum takes part in the investigation. Ho-Ryong is a young, confident man who works as a criminal profiler. He trained with the F.B.I. in the United States. Ho-Ryong is also assigned to the special investigation unit. Ho-Ryong relies on evidence rather than instinct. Detective Sung-Bum takes an immediate dislike for Ho-Ryong.
Is S.I.U. on Netflix? Unfortunately the movie S.I.U. is not yet available on Netflix.
| Directing | Hwang Byeong-gug | Director |
| Writing | Hwang Sung-goo | Screenplay |
| Sound | Hyeongu No | Original Music Composer |
| Costume & Make-Up | Kim Na-hyeong | Costume Design |
| Costume & Make-Up | Lee So-yeong | Costume Design |
| Sound | Kim Tae-seong | Original Music Composer |
| Writing | Kim Yu-jin | Screenplay |
| Directing | Jang Jae-hyun | Assistant Director |
| Sound | Kang Ju-suk | Production Sound Mixer |
| Writing | Hwang Byeong-gug | Adaptation |
| Costume & Make-Up | Lee Gyeong-ja | Makeup & Hair |
| Camera | Kang Seung-gi | Director of Photography |
| Production | Lim Min-sub | Producer |
| Art | Lee Tae-hoon | Art Direction |
| Production | Jeon Min | Line Producer |
| Editing | Moon In-dae | Editor |
| Production | Shin Bum-soo | Executive Producer |
| Writing | Yoo Young-seon | Adaptation |
| Lighting | Lee Jae-hyuk | Lighting Director |
| Sound | Hyun Jee-yoon | Dialogue Editor |
| Sound | Park Yong-ki | Foley Recordist |
| Production | William Kim | Producer |
| Lighting | Kim Hee-tae | Lighting Artist |
