Harry, a timpanist and pyromaniac, and Ginamove into the same apartment due to Hamburg's housing shortage. This is the beginning of a wonderful enmity, with Harry, who has been tried and tested in marital warfare, and relationship terrorist Gina proving to be quite equal opponents.

For business reasons, Rosemary is supposed to marry Peter, a stranger to her, according to her father's wishes. However, while fleeing from America back to Europe, Rosemary and Peter meet under assumed names and fall in love.