Bernd has decided to stay in the city for a few days. His shirt-sleeved nature is a source of conflict in the shared apartment. The dog is also a problem. When Margot makes an inspection visit to the attic apartment, Duncan threatens to be 'busted' ... Alexander and Joachim feel neglected by Regina. Together they plan a weekend getaway to promote family life. Unconsciously, Regina and Gerhard thwart this project. They are planning a sightseeing flight in his private plane for the same weekend. Joachim and Alexander pretend that they have no time 'for professional reasons'. But then the worry about Marc, who has disappeared, pushes all family disputes into the background.