明朝成化(huà )年间，朝纲腐败，奸邪当道。西厂东(dōng )厂为宦官把持，混淆黑(hēi )白，陷害忠良，朝(cháo )野内外噤若寒(hán )蝉。时有赵(zhào )怀安（李(lǐ )连杰 饰）等流(liú )亡剑客挺身而出(chū )，接连铲除(chú )东厂数名奸佞，致令阉贼胆战(zhàn )心惊。适值此时，风头正劲的西(xī )厂