Successful bioengineer Constanze can't find the right moment to tell her boss that she's five months' pregnant. Constanze fears that her news could jeopardize a large-scale project in Brazil, which she has tried to help get off the ground for the last several years. Having known each other since their schooldays, Lena wants to support Constanze in her efforts, but is concerned that Constanze's health and that of her child could be at risk.