"得赌神(shén )毕生(shēng )绝技的刀(dāo )仔（刘德华）在龙(lóng )五（向(xiàng )华(huá )强）的陪同下重出江湖，代表师父以赌技致(zhì )力慈善(shàn )事(shì )业，人称赌(dǔ )侠。遇到(dào )欲拜赌神为师号称(chēng )赌圣的阿星（周星驰）后，两人互展计谋绝(jué )技，打成平手。