Kyeong-Cheol is een gevaarlijke psychopaat die voor zijn plezier mensen doodt. Deze seriemoordenaar vermoordt uiteindelijk het verkeerde meisje, namelijk de dochter van een gepensioneerde politiechef.
Nee, helaas is I Saw The Devil nog niet beschikbaar op Netflix in Nederland.
| Sound | Mowg | Original Music Composer |
| Lighting | Oh Seung-chul | Gaffer |
| Writing | Park Hoon-jung | Screenplay |
| Camera | Lee Mo-gae | Director of Photography |
| Editing | Nam Na-young | Editor |
| Directing | Kim Jee-woon | Director |
| Sound | Choi Tae-young | Sound Re-Recording Mixer |
| Costume & Make-Up | Kwak Tae-yong | Makeup Effects Designer |
| Sound | Choi Tae-young | Supervising Sound Editor |
| Writing | Kim Jee-woon | Screenplay |
| Art | Jo Hwa-seong | Production Design |
| Sound | Dong-Han Kim | Sound Effects Editor |
| Costume & Make-Up | Lee Hee-eun | Makeup Effects Designer |
| Sound | Romain Bigorgne | Sound Effects Editor |
| Sound | Park Yong-gi | Sound Re-Recording Mixer |
| Crew | Jung Doo-hong | Fight Choreographer |
| Camera | Kim Byung-seo | Camera Operator |
| Sound | Gang Hye-yeong | Sound Editor |
| Art | Son Min-jeong | Conceptual Design |
| Costume & Make-Up | Kim Hyun-jung | Makeup & Hair |
| Directing | Seok Min-u | Assistant Director |
| Costume & Make-Up | Kwon Yoo-jin | Costume Design |
| Editing | Kim Mi-young | Editor |
| Art | Kim Byung-han | Conceptual Design |
| Production | Kim Jae-young | Producer |
| Production | Kim Jung-hwa | Producer |
| Production | Kim Hyun-woo | Executive Producer |
| Production | Cho Seong-won | Co-Executive Producer |
| Production | Nam Seong-ho | Line Producer |
| Art | Kim Cho-hea | Set Decoration |
| Crew | Heo Myeong-haeng | Fight Choreographer |
| Visual Effects | Jung Sung-jin | Visual Effects Supervisor |
| Costume & Make-Up | Pi Dae-seong | Special Effects Makeup Artist |
| Crew | Lee Hee Kyung | Special Effects |
| Visual Effects | Kang Jong-ik | VFX Supervisor |
| Visual Effects | Jung Do-ahn | Special Effects Supervisor |
| Art | Jeon Sung-ho | Set Decoration |
| Crew | Han Jeong-uk | Stunts |
| Sound | Kim Kyung-tae | Production Sound Mixer |
| Writing | Lee Yoon-ho | Storyboard |
| Editing | Kim Hyung-seok | Digital Colorist |
| Camera | Lee Jong-woo | Camera Operator |
| Visual Effects | Yang Il-seok | VFX Supervisor |
| Visual Effects | Son Seung-hyeon | VFX Supervisor |
| Camera | Lee Jae-hyeok | Still Photographer |
