Two Hong Kong police detectives seek a serial killer.
| Actor | Role |
|---|---|
 Gordon LiuDetective | Detective |
| BBruce Mang LungJohn Lone | John Lone |
 Felix Wong Yat-WahMak | Mak |
 James Ha Chim-SiBlack Cat | Black Cat |
 Maria Tung LingMd Lau Xen Yee | Md Lau Xen Yee |
 Yang ShengWeapon Tse | Weapon Tse |
 Gam BiuBoss Cheung | Boss Cheung |
| HHung FungBoss Hung | Boss Hung |
 Leong OyWoman at Police Station | Woman at Police Station |
| JJason Fung Man-GitGangster | Gangster |
 Ho Pak-KwongBoss Cheung's Aide | Boss Cheung's Aide |
 Cheung Kwok-WahMuscle Man | Muscle Man |
 To Siu-MingMental Patient | Mental Patient |
 Jackson Ng Yuk-SueDopey Shing | Dopey Shing |
| TTsang Chan-OnPoliceman | Policeman |