A young undercover cop woos the innocent sister of a Triad big brother in order to bring him down.
| Actor | Role |
|---|---|
 Andy LauChou Chun-Chieh | Chou Chun-Chieh |
 Tony Leung Chiu-waiLiu Chia-Lun | Liu Chia-Lun |
 Frankie Chan Fan-KeiLi Yan-Chak | Li Yan-Chak |
 Shing Fui-OnChiu | Chiu |
 Michael Miu Kiu-WaiLi's second | Li's second |
 Ben Lam Kwok-BunLeung Wai-Man | Leung Wai-Man |
 Norman Tsui Siu-KeungColonel Wu Ta-Chuan | Colonel Wu Ta-Chuan |
 Fennie Yuen Kit-YingNot listed | Not listed |
| BBenjamin Lee Chih-HsiNot listed | Not listed |
 Tsai Chong-ChiuNot listed | Not listed |
| CChang Chung-YuNot listed | Not listed |
| LLin Hsieh-WenNot listed | Not listed |
| TTsang Ming-CheongNot listed | Not listed |