Juliane Kostner is an attractive woman in her prime: charming, fashion-conscious, worldly. It's no coincidence that she has been head buyer at a luxury department store in Berlin for 30 years. Juliane's private life, on the other hand, is not quite so rosy. Single Juliane doesn't have a particularly trusting relationship with her grown-up daughter Henrike, for example. But when Henrike, who is heavily pregnant, has to go into hospital after a fainting spell, her husband, the busy pilot Martin, has no choice but to ask Juliane for a favor: She is to look after their two grandchildren for the duration of Henrike's stay in hospital.