It's summer and very hot in Germany's only outdoor women's pool. There, women swim topless, in bikinis, swimming costumes or burkini. Each one follows different rules. This leads to friction time and again, which the overtaxed lifeguard can't quite control. When a group of completely covered women enthusiastically discover the women's pool for themselves, the sparks literally fly: Who owns the baths and who decides the rules? The pool attendant resigns in exasperation. But when a man, of all people, is hired as her successor, the situation escalates in unforeseeable directions.