On his wedding trip to Las Vegas, Jack Singer (Nicolas Cage), a commitment-phobe bridegroom, loses an expensive round of Poker to professional high-stakes gambler, Tommy Korman (James Caan). Unable to cover his loss, Jack agrees to turn his fiance, Betsy (Sarah Jessica Parker), over to Tommy for the weekend. Jack realizes too late that the game was all a setup to get Tommy close to Betsy, who's a dead ringer for Tommy's late wife. jack must then track down Tommy and Betsy to reclaim his fiance, the girl of his dreams. Who will be the lucky couple to celebrate their Honeymoon in Vegas?