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.
| Writing | 莊文強 | Screenplay |
| Production | 劉偉強 | Producer |
| Directing | 麥兆輝 | Director |
| Directing | 劉偉強 | Director |
| Editing | 彭發 | Editor |
| Camera | 黎耀辉 | Director of Photography |
| Writing | 麥兆輝 | Screenplay |
| Camera | 劉偉強 | Director of Photography |
| Production | 黃斌 | Production Manager |
| Camera | Raymond Lam Fai-Tai | Steadicam Operator |
| Sound | 鄺偉雄 | Foley Artist |
| Camera | 曹萬強 | Focus Puller |
| Camera | Ho Kin-Kwong | Focus Puller |
| Costume & Make-Up | Cheng Yu-Lai | Makeup Artist |
| Sound | 曾景祥 | Sound Re-Recording Mixer |
| Crew | 林迪安 | Stunt Coordinator |
| Sound | Felix Chung Sze-Ming | Sound Effects Editor |
| Sound | George Lee Yiu-Keung | Dialogue Editor |
| Sound | 曾景祥 | Sound Designer |
| Lighting | 黃志明 | Gaffer |
| Sound | George Lee Yiu-Keung | Sound Re-Recording Mixer |
| Costume & Make-Up | 劉偉慶 | Hairstylist |
| Visual Effects | 黃宏顯 | Visual Effects Supervisor |
| Editing | 彭正熙 | Editor |
| Sound | Felix Chung Sze-Ming | Music Editor |
| Art | 趙崇邦 | Art Direction |
| Visual Effects | 黃宏達 | Visual Effects Supervisor |
| Costume & Make-Up | 利碧君 | Costume Design |
| Art | Wong Ching Ching | Art Direction |
| Sound | 錢永勵 | Sound Mixer |
| Sound | 陳光榮 | Original Music Composer |
| Production | 黃斌 | Producer |
| Production | Shi Nansun | Producer |
