明朝成化年间，朝纲腐败，奸邪(xié )当道。西厂东厂为宦官把持，混(hún )淆黑(hēi )白(bái )，陷(xiàn )害忠良，朝野内外噤若寒蝉。时有赵(zhào )怀(huái )安（李连杰 饰）等流亡剑客挺身而出，接连铲除东厂数名奸(jiān )佞，致令阉贼胆战心惊。适(shì )值此时(shí )，风头正劲的西厂(chǎng )