The year is 1978: During the filming of the erotic film Susanna, David and Marianne grow closer. While working on the film, Marianne's daughter Isabelle witnesses something that was not meant for her eyes - an event that makes her both angry and hurt. Present: David and Marianne reflect on their relationships with their respective children and on everything that was lost.

The year is 1979. After the mishap at the film festival, the relationship between David and Marianne is cold. Marianne is surprised that David will direct Fröken Julie at the City Theatre where she works. The relationship between them is rekindled and they begin to meet in secret. At Isabelle's birthday party, they have difficulty staying away from each other, and the consequences of their affair soon catch up with them.