明朝成化年间，朝纲腐败，奸邪(xié )当道。西厂东(dōng )厂为宦官把持，混淆(xiáo )黑(hēi )白，陷(xiàn )害忠良，朝野内外(wài )噤若(ruò )寒蝉。时有赵怀安（李连杰 饰）等流亡剑客挺(tǐng )身(shēn )而出，接连铲除东厂数(shù )名奸佞，致令阉贼胆战(zhàn )心惊。适(shì )值此时(shí )，风头正劲的西厂(chǎng )