Gaam yuk fung wan 1987

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.

Cast:

Tony Leung Ka-fai
Lo Ka Yiu 

Chow Yun-fat
Chung Tin Ching 

Roy Cheung
Officer "Scarface" Hung 

William Ho Ka-Kui
Micky 

Tommy Wong Kwong-Leung
Bill 

Victor Hon Kwan
Chiu Chow