明朝成化年间，朝(cháo )纲腐败，奸邪当(dāng )道。西(xī )厂东厂为宦官把(bǎ )持，混淆黑白，陷害忠良，朝野内外噤若(ruò )寒蝉。时有赵怀(huái )安（李(lǐ )连杰 饰）等流亡剑客挺身(shēn )而出，接连铲除东厂数名奸(jiān )佞，致令阉(yān )贼胆战心惊。适值此时，风头正劲的西(xī )厂(chǎng )