明朝(cháo )成化年间(jiān )，朝(cháo )纲腐败，奸(jiān )邪当道(dào )。西厂东厂为宦官把持，混淆黑白，陷害(hài )忠良(liáng )，朝野内外噤(jìn )若寒蝉(chán )。时(shí )有赵怀安(ān )（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 )令阉贼胆战心惊。适值此时，风头正劲的西厂