1929: Marie Lehning, a farm worker from Warmsdorf on the Baltic Sea, falls in love with the fisherman's son Mingo. Both complete an apprenticeship in Lübeck. Marie wants to become a seamstress, Mingo a carpenter. After their first night of love, they swear eternal fidelity. But Marie has to return to the village, her mother is ill and her siblings are unprovided for. She starts working as a maid on a farm. Unexpectedly, she meets the young Kurt Meier from Berlin, whom she knows from before.

Twelve years after graduating from high school, Helmut Hausknecht's former class is planning a class reunion. Hausknecht, still a teacher, has heart problems. His former pupil, Wolfgang Lichtenfeld, now a senior physician and an excellent surgeon, operates on him. On his birthday, not only Wolfgang congratulates his former teacher and patient, but also Uwe Tolls. The two were rivals back then. Their brief encounter shows that nothing has changed.

Twelve-year-old Isabel and her mother, who was a famous political singer, had to escape Chile after the 1973 military coup. Isabel’s father stayed behind fighting in the underground. For six years, they have lived in a new apartment building in East Berlin. At first, the neighbors made an effort to welcome them, but later became more distant. Isabel does not feel at home in the strange country. Not even her friendship to Philip, the neighbors’ son, can change her mind. Almost every day, Isabel sits on the stairs waiting for a letter from her father, from whom she has not heard for many years.

A retired head cashier, lonely after the death of his wife, lives in the hope of being able to move in with his son and his family after the latter builds a house. The son does not want to destroy his father's dream and conceals the fact that the family will not have enough money to build a house in the foreseeable future. When the father realizes this, he reaches into the cash register of his former company in desperation.