The coldest winter in Swedish history has given way to the hottest summer. A sleepy numbness hung over the university town of Linköping, the streets seemed to have died out... And suddenly one morning a fifteen-year-old girl was found in a gazebo in the park. She has several wounds on her body, and she, being in deep shock, does not remember at all what happened to her. Inspector Malin Force begins an investigation, but the case turns into a chain of scandals. The criminal police seem to be chasing a shadow, not knowing who they are looking for: a man, a woman, a group of people? Psychologists say: the criminal, most likely, was himself subjected to violence and now seeks to regain his purity and innocence in such a wild way. And the number of victims increases...