明朝成化年间(jiān )，朝纲腐败，奸邪当道。西厂东厂为宦官把持，混淆(xiáo )黑(hēi )白，陷(xiàn )害(hài )忠良，朝(cháo )野内外噤(jìn )若(ruò )寒(hán )蝉。时有赵怀安（李(lǐ )连杰 饰）等流(liú )亡剑客挺身而出，接连铲除东厂数名奸佞，致令阉贼胆战心惊。适值此时，风头正劲的西厂(chǎng )