明朝成化年间，朝纲腐败，奸邪(xié )当道。西厂(chǎng )东厂为宦官把持，混淆(xiáo )黑(hēi )白，陷害(hài )忠(zhōng )良，朝野内外噤若(ruò )寒(hán )蝉。时有赵怀(huái )安（李连杰 饰）等流(liú )亡剑客挺身而出，接连铲除东厂数名奸(jiān )佞，致令阉贼胆战心惊。适值此时，风头正劲的西厂(chǎng )