A large generational portrait of our time. Isabell and Georg are a couple. A happy one. When the cellist Isabell returns home late at night from her performances with the orchestra, or when the journalist Georg is on his way home from his shift at the editorial office, they often look into the windows of strangers' apartments, peering into the bright rooms with their gazes. During evening walks, they become voyeurs. Bookshelves full of books, stylish ceiling lamps, the colorful curtains of children's rooms. Signals of secure existences that give them a comforting feeling. Recognizing their own life in the foreign apartments. But that feeling fades away. With the birth of their son, not only does their happiness grow, but so does the pressure and uncertainty. For Isabell, returning to her profession proves to be difficult: during the solo, her hands tremble, not just on the first evening.