The small Berlin shipping company Wünsche is a real family business: together with her daughter Claudia and her husband Mario, Astrid Wünsche has been offering sightseeing tours through the capital's canals for many years. Astrid's divorced husband Uwe, with whom she still gets on well despite a painful separation, takes care of the on-board catering and runs a small gourmet restaurant on one of the jetties.
After a long business trip to the USA, shipping company manager Albert Marquard returns to Berlin. However, his girlfriend Astrid Wünsche has mixed feelings about the reunion: After all, Albert had only contacted her once in all that time. Much to the annoyance of Astrid's jealous ex-husband Uwe, the suave charmer manages to win Astrid over again.
