明朝成化年间，朝纲腐败，奸邪(xié )当道。西厂东厂为宦官把(bǎ )持，混淆(xiáo )黑(hēi )白，陷害忠(zhōng )良，朝野内外噤若(ruò )寒(hán )蝉。时有赵怀(huái )安（李连杰 饰(shì )）等流亡剑客挺身(shēn )而出，接连铲(chǎn )除东(dōng )厂数名奸(jiān )佞，致令阉(yān )贼胆战心惊。适值此时，风头正劲的西厂