明朝成化年(nián )间，朝(cháo )纲腐败(bài )，奸(jiān )邪当道。西厂东(dōng )厂为宦官把持，混淆黑白，陷害忠良，朝野内外噤若寒蝉。时有赵怀(huái )安（李连杰 饰）等流(liú )亡剑客挺身而出(chū )，接连铲除东厂数名(míng )奸(jiān )佞，致令阉贼(zéi )胆战(zhàn )心(xīn )惊。适值此时，风头正劲的西厂