明朝成化年间，朝纲(gāng )腐败，奸邪当道。西厂东(dōng )厂为宦官把(bǎ )持，混淆黑(hēi )白(bái )，陷害忠良，朝野内外噤若寒蝉。时有赵(zhào )怀安（李连杰 饰）等流亡(wáng )剑客挺身而出，接连(lián )铲(chǎn )除东厂数名奸佞，致令阉(yān )贼胆战心惊。适值此时，风头(tóu )正劲的西厂(chǎng )