明朝成化年(nián )间，朝(cháo )纲腐败，奸邪当道。西厂东厂为宦官把(bǎ )持，混淆黑(hēi )白，陷(xiàn )害忠良，朝野(yě )内外噤若寒蝉。时有(yǒu )赵怀(huái )安（李连杰 饰）等流亡剑客挺身而(ér )出，接连铲除东厂数名奸佞，致令阉贼胆(dǎn )战(zhàn )心惊。适值此(cǐ )时，风头正劲的西厂