Dunderklumpen lives all alone in the mountains of Jämtland. One Midsummer's Eve when he feels very lonely he sets off on a journey to find friends.
Selma and her friend Agatha are watching a movie on TV. Agatha starts to talk about older men and their dangerous age, but Selma can't image that her husband Fridolf is among those.
A model is murdered at a famous fashion house and the Hillmans start to investigate. Kajsa Hillman is employed as a model and discovers that several people had motives to kill her.
