明朝成化年(nián )间，朝纲腐败，奸邪当(dāng )道。西厂东厂为宦官把持，混淆黑白，陷害忠(zhōng )良，朝野内外(wài )噤(jìn )若寒蝉。时有赵怀(huái )安(ān )（李(lǐ )连杰 饰）等流亡(wáng )剑客挺身而出，接连铲除东厂数名奸佞，致(zhì )令阉贼(zéi )胆战(zhàn )心惊。适值此时，风头正劲的西厂