Warum lügt Fräulein Käthe?

The pleasure boat “Milwaukee” has a wide variety of guests on board: Frau Deiters, who is determined to get her daughter married off; Herr Krueger, who won a free ticket to travel onboard; Herr Dr. Bornemann, a completely introverted man, who has dedicated himself to his work; and Ms. Kathe, the ship’s photographer.