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.

Das Interesse eines Professors für Familienrecht und gleichzeitigen Gegners der Ehe wird scheinbar durch seinen jungen Assistenten und dessen heimliche Ehefrau, eine Studentin des Hochschullehrers, wieder auf seine damalige kurzzeitige Ehefrau gelenkt...