Ko Chow is an undercover cop who is under pressure from all sides. His boss, Inspector Lau, wants him to infiltrate a gang of ruthless jewel thieves; his girlfriend wants him to commit to marriage or she will leave Hong Kong with another lover; and he is being pursued by other cops who are unaware that he is a colleague. Chow would rather quit the force, feeling guilty about betraying gang members who have become his friends.
周潤發
as Ko Chow
李修賢
as Tiger
孫越
as Inspector Lau/Uncle Kung
吳家麗
as Hung
張耀揚
as Inspector John Chiao Chi
劉江
as Commissioner Chow
徐錦江
as Chan Kam-Wah
Fong Yau
as Chow Nam
Chan Chi-Fai
as Chen Ching / Tai Song
Joe Chu Kai-Sang
as Tsai
Victor Hon Kwan
as Bill
黃柏文
as Detective Man
