明朝成化年(nián )间(jiān )，朝纲腐败，奸邪当道。西厂东厂为宦官把持，混淆黑白，陷害忠(zhōng )良，朝野内外噤若寒蝉。时有赵(zhào )怀安（李连杰 饰）等流亡剑客挺(tǐng )身而出，接连铲除东(dōng )厂数(shù )名奸佞，致令阉贼(zéi )胆(dǎn )战心惊。适值此时，风头正劲(jìn )的西(xī )厂