It's summer and very hot in Germany's only open-air swimming pool for women. There, women bathe topless, in a bikini, bathing suit or burkini. Each follows different rules. This always leads to friction, which the overwhelmed lifeguard is not quite able to control. When a group of completely veiled women enthusiastically discovers the women's bath for themselves, rags literally fly: Who owns the bath and who makes the rules? Who owns the female body? And when is a woman a woman at all? The lifeguard resigns, exasperated. But when a man of all people is hired as the successor as lifeguard, the situation escalates in unpredictable directions.
Shortly before the end of the Second World War, Anna and her eleven-year-old son Felix seek refuge in the countryside, where a strict Nazi regiment also prevails. In contrast to his mother, Felix slowly succumbs to right-wing propaganda.
Anne falls in love with the Jewish doctor Daniel. Since he is not Jewish, he allows himself to be coached accordingly in order to keep up appearances. Every attempt by Daniel to clear up the misunderstanding achieves the opposite. Eventually he capitulates because he doesn't want to lose Anne. Tobias has to help him.