The same situation is played out in different cities (New York, Berlin and Tokyo). A lover has to choose whether to commit to a partner who is returning home. In each case there are other people involved, an ex-partner and someone else in a "permanent" relationship, what do they choose to do?

The law student Caroline and the assistant professor Tom are husband and wife, but they keep their marriage a secret. While Caroline is afraid of annoying her mother Hella who ever since her divorce twenty years ago distrusts men in general, Tom dreads the criticism of his professor, a family law specialist who objects to the concept of marriage. By chance, Caroline gets hold of some juicy information: Her mother and the professor used to be a couple and she is their child. With almost missionary zeal she addresses herself to the task of convincing the two grown-ups to get back together. In the process, however, she steers both her academic studies and her own marriage into a crisis.

Maja Wegner is in her late thirties and a single mother of a teenage daughter. To give her stale life a new direction, she decides to start all over again in the big city. She sells her house in the countryside, quits her job, and moves with her daughter to Berlin. There, she finds a job as a conductor for the railroad company. Although Maja soon finds new friends in her apartment building, the search for a new life partner does not come off so easily.

Three people from very different walks of life meet at a large construction site. Young, unmarried, self-confident construction manager Linda Hinrichs dedicates herself completely to her work and enjoys living more independently then most women. Daniel, a student works on the construction site to make money during his summer holiday, and impresses Linda with his spontaneous energy and idealism. Brigadier Böwe, an older, divorced man works his way from one construction site to the other and has lost his own personal happiness on the path to developing what was seen as officially suitable social standards. Both men try to win Linda over, not realizing that they are taking her freedom away from her.