Lo Ka Yiu, a young ad designer who is sentenced to jail for manslaughter, has gotten himself in trouble with the corrupted wardens and fellow inmates of Triad background. Chung Tin Ching, a veteran inmate and Yiu's mentor, is forced to confront his comrade's enemies time and again, leading up to the final showdown with the head of security.
梁家輝
as Lo Ka Yiu
周潤發
as Chung Tin Ching
張耀揚
as Officer "Scarface" Hung
何家駒
as Micky
黃光亮
as Bill
Victor Hon Kwan
as Chiu Chow
霍瑞華
as Yung
吳志雄
as Blind Snake
Wong Man-Gwan
as Mimi
Joe Chu Kai-Sang
as Billy
成奎安
as Mad Dog
Leung Ming
as Yiu's Father
