明朝成化年间，朝纲腐败，奸邪当道。西厂东厂为宦(huàn )官把持，混淆黑白(bái )，陷害忠(zhōng )良，朝野内外(wài )噤若寒蝉。时有赵(zhào )怀安（李(lǐ )连杰 饰）等流亡剑(jiàn )客挺身而(ér )出，接连铲除东厂数(shù )名奸(jiān )佞，致令(lìng )阉贼胆战心惊。适值此时，风头正劲的西厂