明朝成化年间，朝(cháo )纲腐败，奸邪当道(dào )。西厂东厂为宦官(guān )把持，混淆黑白，陷害忠良，朝野内外噤(jìn )若寒蝉。时有赵(zhào )怀安（李(lǐ )连杰 饰）等流(liú )亡剑客挺(tǐng )身(shēn )而出，接连铲除东(dōng )厂数(shù )名奸佞，致令阉贼胆战心惊。适值(zhí )此时，风头正劲的西(xī )厂