"得赌神毕(bì )生绝技的刀(dāo )仔（刘德华）在(zài )龙五（向华强）的陪同(tóng )下重出江湖，代表师父以赌技(jì )致力(lì )慈善(shàn )事(shì )业，人(rén )称赌侠。遇到欲拜赌神为师(shī )号称赌圣的阿星（周星驰）后，两人(rén )互展计谋绝技，打成平手。