明朝成化年间，朝纲(gāng )腐败，奸(jiān )邪当道。西厂东厂为宦(huàn )官把持(chí )，混淆黑白，陷害忠良，朝野内外噤(jìn )若(ruò )寒蝉。时有赵怀安（李连(lián )杰 饰）等流亡剑(jiàn )客挺身而出，接连铲除东厂数(shù )名奸佞，致令阉贼胆(dǎn )战心惊(jīng )。适值(zhí )此时，风头正劲(jìn )的西厂