Dr. Gisa Tonius, a physicist in her thirties who has a nearly adult stepdaughter, cherishes the desire to have her own child. Suddenly, a big interdisciplinary research project threatens to significantly change Gisa′s life. Uncertain whether to look for professional or private fulfillment she asks her family and friends for their opinions. They all have different views on the point at issue. While her husband is afraid of losing her to her profession, her professor thinks that because of her talent she has an obligation towards science. In the end, Gisa reaches a decision: She wants to have a baby as well as take on the research project.
Dr. Barbara Heim, a heart surgeon, and Gunter Heim, a well-known actor, have been married for seven years. They have a six-year-old daughter. Both partners are totally taken up by their work which is physically and mentally demanding. So there is little time left for family life and the strained relations worsen and finally plunge Barbara into a crisis - shortly before their seventh wedding anniversary. At this very point a child dies in hospital, prompting Barbara to ask herself in desperation if - and for how long she can put up with the double burden of career and family. On top of this, she notices that Gunter is starting to compare her to other women.
This film continues the story of radio operator Ludwig Bartuschek from “The Sailor’s Song”. Near the end of the Weimar Republic, Bartuschek (Erwin Geschonneck) is working as a mechanic in the Sperber airplane plant. Director Dehringer offers him the opportunity to train as an airplane constructor if he is willing to give up his communist beliefs under oath. Bartuschek will not allow himself to be bought and instead joins the underground resistance movement.