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.
as Lo Ka Yiu
as Chung Tin Ching
as Officer "Scarface" Hung
as Micky
as Bill
as Chiu Chow
as Yung
as Blind Snake
as Mimi
as Billy
as Mad Dog
as Yiu's Father
as Prison Superintendent
as Kau Suk
as Police Inspector
as Prisoner
as Prisoner
