明朝成(chéng )化年间，朝纲腐败，奸邪当道(dào )。西厂东厂为宦官把持，混淆黑白，陷害忠良，朝(cháo )野内外噤(jìn )若(ruò )寒蝉。时有赵怀安（李连(lián )杰(jié ) 饰）等流(liú )亡剑客(kè )挺身(shēn )而出，接连铲除(chú )东厂数名奸佞，致令阉贼胆战心惊。适值(zhí )此(cǐ )时，风头(tóu )正劲的西厂(chǎng )