Three sisters and their families meet each other for lunch every other week at their mother’s. They do not touch on their own problems, but instead talk about trivial things or about their missing brother Dieter, who was put up for adoption by his mother before the building of the Berlin Wall. Being left alone with the search for him by the East German authorities, the problem seems to be getting so big that all the other difficulties the family have got fade into the background. When uncle Dieter is finally found after the fall of the Berlin Wall, the family system begins to sway despite the general joy.