Josephine Alhanko

A young beautiful woman is found dead in the river and on the finger she wears a brilliantly fitted wedding ring that belongs to someone else. The autopsy shows that the cause of death is not drowning, but a head injury.

In the middle of upptakterna to the medieval week in Visby, a fire, where the near 70-year-old Frida is assumed to have perished in the flames. When such a number of murders are taking place, the trail leads Maria Wern and the police colleagues to a summer vacation village where everyone knows everyone and where the discovery of documents with Latin texts and arcane drawings will get the police to worry about attacks actually has to do with the celebration.