明朝成化年间，朝纲腐败，奸邪当道。西厂东(dōng )厂为宦官把(bǎ )持，混淆黑白，陷害(hài )忠良，朝野内外噤若寒蝉。时(shí )有赵怀安（李连杰 饰）等流亡剑(jiàn )客挺身而(ér )出，接连铲除东(dōng )厂数名奸佞，致令阉贼胆战(zhàn )心惊。适(shì )值(zhí )此时(shí )，风(fēng )头正(zhèng )劲的西厂