Gerhard Rehbein is a station master on the underground, his wife Helga a bubbly and practical propagandist and housewife. Their son, Thomas, born in 1967, loves to sit in his winged-back chair and ponder how to make the best of his life. He starts studying at the age of 30. Today he is a freelance photographer, his future open and uncertain. His mother has always worried about her son: "Sometimes, he's a little bit of a dreamer. But at some point he has to start earning his living."