影片讲述了香港警察赵铁板（林威）因抓捕犯罪头子黑豹（狄威）惹下祸根，妻子与一双儿女被杀，赵因报仇追黑豹到地狱中，经过顽强拼杀，最终将罪犯绳之以法.

Cop & robber story with a twist. A cop is trying to nail a bad guy (played by Dick Wei). This pisses the bad guy enough that he goes to the cop's house and kills both his wife and his daughter. When the cop gets there, he catches Dick Wei on his way out and ends up cornering him. Dick, who doesn't want to give the cop the satisfaction, jumps to his death. But the cop follows him into hell to make him pay.