明朝成化年(nián )间，朝纲腐败，奸邪当道。西厂东厂为宦官把持，混淆(xiáo )黑(hēi )白(bái )，陷害忠良，朝(cháo )野内外噤若(ruò )寒蝉。时有赵怀(huái )安(ān )（李连杰 饰）等流亡剑客挺身而出，接连铲除东(dōng )厂数名(míng )奸佞，致令阉贼胆战心惊。适值此时(shí )，风头(tóu )正(zhèng )劲的西(xī )厂(chǎng )