明朝成化年(nián )间，朝纲腐败，奸(jiān )邪当道。西厂东厂为(wéi )宦官(guān )把(bǎ )持，混(hún )淆黑白，陷害忠良(liáng )，朝(cháo )野内外(wài )噤若寒蝉。时有赵怀安（李连杰 饰(shì )）等流亡剑客挺身(shēn )而出，接连铲除东厂数名奸佞，致令阉贼胆战心惊。适值此(cǐ )时，风头正劲的西厂