The young bride of the heir to the throne of the fictional kingdom of Barataria arrives in Venice to join her husband. It turns out, however, that he cannot be identified, since he was entrusted to the care of a drunken gondolier who mixed up the prince with his own son. To complicate matters, the King of Barataria has just been killed. The two young gondoliers must now jointly rule the kingdom until the nurse of the prince can be brought in to determine which of them is the rightful king. Moreover, when the young queen arrives to claim her husband, she finds that the two gondoliers have both recently married local girls. A last complicating factor is that she, herself, is in love with another man.