明(míng )朝成化年间(jiān )，朝纲(gāng )腐败，奸邪当道。西厂东厂为宦官把持，混淆黑白，陷害忠良，朝野内外(wài )噤若(ruò )寒蝉。时有赵(zhào )怀安（李(lǐ )连杰 饰）等流亡剑客挺身而出，接(jiē )连铲除东厂数名奸佞，致令阉(yān )贼胆战心惊。适值此时，风头(tóu )正劲的西(xī )厂(chǎng )