The film is based on a series of immensely popular Swedish children's books, about the boy Bert, who is just hitting puberty and having the usual problems with it. But that's where the usual ends abruptly.

After 15 years of marriage, David and Marianne have grown apart. David has had an affair with a patient of his and Marianne has got herself involved with her former lover Carl-Adam, who's also David's best friend. When she travels to Copenhagen to meet Carl-Adam, David takes the same train as she does, making it look coincidental. Spending time together remembering their past and talking about their future, they come to understand each other again, which leads to a reconciliation.

A first movie based on Astrid Lindgren's novel "Madicken och Junibackens pims", which is about two sisters and their adventures in 1910s Sweden.