A modest London accountant on a budget, Mr. Bertram has settled on a honeymoon at the seaside resort of Bournemouth with his fiancée, Cary. However, Bertram’s boss, the solicitous Herbert Dreuther, won’t hear of anything so common. Bertram and Cary are to be married in Monte Carlo, after which they’ll be Dreuther’s guests on his private yacht and sail down the coast of Italy. It sounds too lovely to be true. And surely Bertram can afford one night at the Hôtel de Paris. But when the absentminded Dreuther fails to show, and days turn into weeks, Bertram and Cary find themselves well beyond their means. Unable to check out, trapped in luxury, and with nowhere to turn but the casino, Bertram has a plan—and absolutely no idea what there is left to lose.