明朝成化(huà )年间，朝(cháo )纲腐败(bài )，奸邪(xié )当道。西厂东(dōng )厂为宦官(guān )把持(chí )，混淆黑白，陷害忠良，朝野内外噤若(ruò )寒蝉。时有赵怀安（李连杰 饰）等流(liú )亡剑(jiàn )客挺身而出，接(jiē )连铲除(chú )东厂数名(míng )奸佞，致(zhì )令阉贼胆(dǎn )战心惊。适值此时，风头正劲的西厂