Yan is een undercover-agent bij de triades, de Hongkongse maffia. Na tien jaar hard werken zit hij diep in de machtigste bende van Hong Kong. Ming is een criminele infiltrant in de politie, die daar op zijn achttiende werd geplaatst.
Nee, helaas is Infernal Affairs nog niet beschikbaar op Netflix in Nederland.
| Directing | 麥兆輝 | Director |
| Writing | 莊文強 | Screenplay |
| Writing | 麥兆輝 | Screenplay |
| Editing | Danny Pang | Editor |
| Camera | Lai Yiu-Fai | Director of Photography |
| Production | Andrew Lau Wai-Keung | Producer |
| Directing | Andrew Lau Wai-Keung | Director |
| Camera | Andrew Lau Wai-Keung | Director of Photography |
| Production | 黃斌 | Production Manager |
| Camera | Raymond Lam Fai-Tai | Steadicam Operator |
| Sound | Felix Chung Sze-Ming | Sound Effects Editor |
| Visual Effects | 黃宏顯 | Visual Effects Supervisor |
| Costume & Make-Up | Cheng Yu-Lai | Makeup Artist |
| Sound | Felix Chung Sze-Ming | Music Editor |
| Sound | 曾景祥 | Sound Re-Recording Mixer |
| Sound | 曾景祥 | Sound Designer |
| Lighting | Wong Chi-Ming | Gaffer |
| Camera | Wing Chung Kwan | Focus Puller |
| Sound | George Lee Yiu-Keung | Sound Re-Recording Mixer |
| Editing | Curran Pang | Editor |
| Art | 趙崇邦 | Art Direction |
| Sound | 鄺偉雄 | Foley Artist |
| Camera | 曹萬強 | Focus Puller |
| Camera | Ho Kin-Kwong | Focus Puller |
| Visual Effects | 黃宏達 | Visual Effects Supervisor |
| Sound | 錢永勵 | Sound Mixer |
| Crew | 林迪安 | Stunt Coordinator |
| Sound | George Lee Yiu-Keung | Dialogue Editor |
| Art | Wong Ching Ching | Art Direction |
| Costume & Make-Up | 利碧君 | Costume Design |
| Costume & Make-Up | 劉偉慶 | Hairstylist |
| Sound | Chan Kwong-Wing | Original Music Composer |
