Fritz Linn

Director Burckhardt is found shot just after making the moves on Gisela Ostercamp, the wife of a business colleague. When the criminal investigator Haupt inspects items in the apartment of the dead man, he comes to the conclusiong that Gisela herself is the murderess and accusations start flying between the married couple. The murdered man's brother, the lawyer Burckhardt, steps up to act as defense counsel for the woman, with whom he has learned to love in the meantime.

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. On the way to Madeira, Mother Deiters quickly determines, that only Dr. Bornemann would be an appropriate match for her daughter. However, Fraulein Kathe secretly is in love with him. When the two end up in a very publicly embarrassing situation, the entire ship thinks she is the fiancée.