明朝成化年(nián )间，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(xiàn )害忠良，朝野内外噤若(ruò )寒蝉。时有赵怀(huái )安（李(lǐ )连杰(jié ) 饰）等流亡剑客挺身而出，接连铲除东厂数名奸佞，致令阉贼(zéi )胆战(zhàn )心惊。适值此时，风头正(zhèng )劲的西(xī )厂