明朝成化年间，朝(cháo )纲(gāng )腐败，奸邪当道(dào )。西厂东厂为宦(huàn )官把持，混淆黑白，陷害忠良，朝野(yě )内外噤(jìn )若寒(hán )蝉。时有赵(zhào )怀安（李(lǐ )连杰 饰）等流亡(wáng )剑客挺身而(ér )出，接连铲除东厂数名奸佞，致令阉贼胆战(zhàn )心惊。适值此时，风头正劲的西(xī )厂