明朝成化年(nián )间，朝纲腐败，奸邪当道。西厂东厂为宦官把持，混淆黑白，陷(xiàn )害忠良，朝野内外(wài )噤(jìn )若寒蝉。时有赵怀(huái )安（李连(lián )杰 饰）等流亡剑(jiàn )客(kè )挺身而出，接连(lián )铲除东厂数名奸佞，致(zhì )令(lìng )阉贼胆战心惊。适(shì )值此时，风(fēng )头正劲的西厂