Frau Bessie, once a madcap, aristocratic and modern Swedish fraulein, has become now a whimsical and conservative Swedish burgess after her marriage to Herr Thomas Graal. The destabilization of the marriage begins right at the wedding (which contains some hilarious incidents) when Frau Bessie announces the first Graal child must be a girl, creating a terrible conflict with her husband who is hoping for a boy. It takes a scandal to finally end the war between man and wife.

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.