明朝成化年(nián )间，朝纲腐败，奸邪当道。西厂东(dōng )厂为宦(huàn )官把持(chí )，混淆黑白(bái )，陷(xiàn )害忠(zhōng )良，朝(cháo )野内外噤若寒蝉。时有赵怀安（李连杰 饰）等流亡剑客挺身(shēn )而(ér )出(chū )，接连铲除东(dōng )厂数名奸佞，致令阉贼胆战心惊。适值此时(shí )，风头正劲的西厂