明朝成化年间，朝(cháo )纲(gāng )腐败，奸邪当道。西厂东厂为宦官把持，混淆(xiáo )黑白，陷害忠良，朝(cháo )野内外(wài )噤若(ruò )寒蝉。时有赵怀安（李连杰 饰(shì )）等流亡剑客(kè )挺身而出(chū )，接连铲除东(dōng )厂数名奸佞，致(zhì )令阉贼胆战心惊。适值此(cǐ )时，风(fēng )头正劲的西厂(chǎng )