'Monster Cop' Ma Seok-do onderzoekt een illegaal online gokbedrijf onder leiding van een voormalige STS Baek en een IT-genie CEO Chang. Ma stelt Jang een onverwachte alliantie voor en begint de jacht op de criminelen.
Nee, helaas is 범죄도시 4 nog niet beschikbaar op Netflix in Nederland.
| Directing | 허명행 | Director |
| Production | 마동석 | Executive Producer |
| Sound | 윤일상 | Original Music Composer |
| Lighting | Park Sung-chan | Lighting Director |
| Writing | 오상호 | Writer |
| Writing | 마동석 | Adaptation |
| Production | 장원석 | Executive Producer |
| Costume & Make-Up | 남지수 | Costume Design |
| Editing | 김선민 | Editor |
| Camera | Lee Seong-je | Director of Photography |
| Art | 방길성 | Production Design |
| Sound | 공태원 | Sound Supervisor |
| Production | Yoo Young-chae | Producer |
| Production | Kim Won-hun | Producer |
| Costume & Make-Up | 남지수 | Makeup & Hair |
| Production | Kim Hong-baek | Executive Producer |
| Editing | 박진호 | Digital Intermediate |
| Art | Nam Seong-ju | Set Decoration |
| Sound | Kim Gi-nam | Production Sound Mixer |
| Visual Effects | 정도안 | Special Effects Supervisor |
| Visual Effects | Jeon Min-gyu | Visual Effects |
| Costume & Make-Up | Pi Dae-seong | Special Effects Makeup Artist |
| Crew | Yoon Seong-min | Martial Arts Choreographer |
| Art | 김순근 | Props |
| Camera | 김태영 | Key Grip |
| Directing | 김훈영 | Assistant Director |
| Production | 이춘우 | Line Producer |
| Writing | 김형석 | Adaptation |
| Art | Eom Se-yong | Special Props |
| Writing | Lee Yoon-ho | Storyboard |
| Visual Effects | 정민우 | Special Effects Supervisor |
| Sound | 김미미 | Boom Operator |
| Camera | 김대성 | "B" Camera Operator |
| Writing | 차우진 | Characters |
| Writing | Kim Min-sung | Characters |
| Writing | 강윤성 | Characters |
| Sound | Kim Hyeon-gyu | Sound Effects Editor |
| Production | 추병조 | Line Producer |
| Visual Effects | 정재훈 | VFX Supervisor |
| Crew | 장한승 | Stunts |
| Editing | 박현진 | Senior Colorist |
| Crew | 이병희 | Stunts |
| Sound | 서지원 | Sound Effects Editor |
| Costume & Make-Up | 신진희 | Costume Designer |
| Crew | 천준호 | Stunts |
| Crew | 백남준 | Stunts |
| Costume & Make-Up | 아이락 김 | Tattoo Designer |
