The married detective couple John and Kajsa Hillman goes on a vacation to Holmfors mill where a friend of Kajsa's lives with her husband. When a young woman is found murdered it is clear that this is another case for the Hillmans.
Gertrud is being abandoned by her husband after 20 years of marriage. Offended and unhappy she leaves her home and rents a room. The landlady's son is drawn to her and tries to help her out of the loneliness.
Eriksson is a divorced engineer without intellectual interests. He lives alone in a friendly, rundown tenement where the neighbors' intimate relationships can be easily listened to through the walls.
The world famous violinist Holger Brandt comes back to his family after a tour. He and his wife have been married for many years, but their love has faded. Their young daughter gets a new piano teacher, Anita Hoffman. Mr. Brandt falls in love with her and together they go on a world tour, but he soon discovers that the feelings for his wife that he thought were dead are not.
Famous chef Carl-Ulrik Johansson (Erik 'Bullen' Berglund) comes home to Sweden after twenty years abroad and finds out he never finished his compulsory military service. Consequently he is forced to join the army as a conscript. He has many fights with his sergeant Göran Persson (Thor Modéen).