While vacationing in New York, a European prince falls for a showgirl.

Former king Alfred VII drinks every night because he is so bored. His only two remaining subjects, Count Humbert and Duchess Anna, take him to the Folies Bergère, hoping the show will interest him. He is about to fall asleep in his seat when he notices one of the chorus girls, Dorothy Ellis, and asks Anna and Humbert to invite her to supper. Dorothy arrives at the hotel where Alfred lives only to discover that he has fallen asleep, so she immediately returns home. Anna is impressed by Dorothy's independence and is convinced that Alfred will be intrigued by a woman who does not chase him. She and Humbert visit Dorothy and beg her to resist Alfred in order to interest him in life. The ruse works and Alfred pursues her enthusiastically. He even stops drinking. Then, Dorothy falls in love with Alfred. Realizing that he will probably not marry a commoner, however, she pretends that she is leaving the show to get married. Alfred doesn't believe her and decides to abduct her to his yacht. To convince him that she is telling the truth, Dorothy arranges for Humbert to find Donald, an American waiter who is pretending to be her fiancé. Alfred starts drinking again and by chance walks into the restaurant where the waiter works. He learns that Donald was paid to impersonate a doctor and that Dorothy was paid to stop him from drinking. His feelings hurt, Alfred invites Dorothy to dinner on his yacht, planning to confront her. During the argument, Dorothy blurts out that she loves him before she runs away. Delighted by the news, Alfred searches everywhere for her and finally finds her on board a ship headed for America. He charters the ship, and after he arranges for the captain to marry them, the ship sails to Niagara Falls for the honeymoon.