Lam Wai’s wife and daughter were raped, his son is severely wound in coma, he then extremely hot. Later, his girl friend’s sister makes friend with bully and died due to overdose, he therefore kills the drug dealer. The detective Alex Man is investigate the case, the drug dealer Wu Ma pretends the rich man merchant, and employs Lam to get rid of all opponent in order to be a sole dealer in the market, he afterward kidnaps Lam’s girl friend and his son, and compels him to follow his instruction, and intends to kill them. Finally, Lam & Man cooperate together to kill Wu Ma.