明朝成化年间，朝纲(gāng )腐败(bài )，奸邪当道。西厂东(dōng )厂为宦(huàn )官把持，混淆黑(hēi )白，陷(xiàn )害忠良，朝野内外噤若寒蝉。时(shí )有赵怀安（李(lǐ )连杰 饰）等流亡剑客挺身而出，接连铲除东(dōng )厂数名奸佞，致(zhì )令(lìng )阉贼胆战心惊。适值此时(shí )，风头(tóu )正劲的西厂