Tsao Chan (Gordon Liu) is a letter carrier in the countryside who wanders into a town after being accosted by some corrupt cops. He witnesses three men running from a group of houses, and when he investigates he finds two murder victims inside. Meanwhile, a skirmish is developing between a factory owner (Fung Hak On) and his workers, led by two brothers (Paul Chin and Dean Shek). Tsao recognizes the brothers as two of the men fleeing the murder scene, so he decides to ally with the factory boss in order to go solve the crime. Soon though, it becomes clear that the boss and his thugs may have other things in mind that aren't so kosher. Tsao becomes trapped in the middle of the feuding groups and must decide who is honest and who is not.
劉家輝
as Tsao Chan
石天
as Chang Tsai
Maggie Li Lin-Lin
as Hsiu Tsui
秦沛
as Chang Chiu-Ming
Lo Wai
as Police Chief
Chik Ngai-Hung
as Au's Thug
黃樹棠
as Worker Hired to Blow Up Tu
任世官
as Au's Thug
馮克安
as Au San-Yeh
陳狄克
as Au's Thug (uncredited)
Chan Keung
as San Yeh's Thug, Follows Tu (uncredited)
Chu Kai
as Au's Thug (uncredited)
