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.