明朝成化年间，朝(cháo )纲(gāng )腐败，奸邪(xié )当道。西厂东厂为宦官把持，混淆黑(hēi )白，陷害忠(zhōng )良，朝野内外噤若(ruò )寒蝉。时(shí )有赵怀安（李(lǐ )连杰 饰）等流(liú )亡剑客(kè )挺身而出，接连铲除东厂数名奸(jiān )佞，致令阉贼胆战心惊。适值(zhí )此时，风头正劲的(de )西厂(chǎng )