明朝(cháo )成化年间，朝纲腐(fǔ )败，奸邪当道。西厂东(dōng )厂(chǎng )为宦官把(bǎ )持，混(hún )淆黑白(bái )，陷害忠良，朝(cháo )野内外噤若寒(hán )蝉(chán )。时有赵怀安(ān )（李连杰 饰）等流亡剑客挺身而出，接连铲除东厂数(shù )名奸佞，致(zhì )令阉贼胆战心惊。适值此时，风头正(zhèng )劲的西厂