Prince Otto is forced into a marriage with the comtesse Alžběta Vukovičová. Otto, however, intends finding a bride of his own free will. The comtesse herself is left cold by the proposed union. They have never met before. Otto is given some time to reflect and he leaves to go and visit the estate of his adjutant near the Vukovič castle, dressed as an ordinary lieutenant. He meets a girl who introduces herself as laundry girl Bětuška who works for comtesse Alžběta. Otto falls in love with the girl and wants to marry her. He is then called back by telegraph to the castle for he is to meet with count Vukovič and his daughter Alžběta. Otto discovers that Bětuška is, in fact, the comtesse Alžběta and he readily agrees to become her husband. Alžběta tries to run away from the arranged marriage. She is traced down and, during the enagagement ceremony, she realises that her beloved lieutenant and the prince Otto are one and the same person. (According to promotional material issued at the time the film was made.)
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