明朝成化年间，朝纲腐败，奸邪当道。西(xī )厂东厂为宦官(guān )把持，混淆黑白，陷害忠(zhōng )良(liáng )，朝(cháo )野内外(wài )噤若寒蝉。时有赵怀安（李(lǐ )连杰(jié ) 饰）等流亡剑客挺身而出，接连铲除东厂数名奸(jiān )佞，致令(lìng )阉贼胆战心(xīn )惊。适值(zhí )此时(shí )，风头正劲的西厂(chǎng )