During a snowy Christmas season in Sweden, psychologist and profiler Inger Johanne Vik and her autistic daughter both get drawn into the investigation of a number of disturbing deaths, through which she meets detective Ingvar Nyman of "Rikskrim", a Swedish national police force.
Nyman is dispatched to Uppsala to investigate the shocking Christmas Eve murder of Bishop Elisabeth Lindgren. In Stockholm, bodies keep turning up, though the causes of death vary. But before long, Inger Johanne notices a pattern.
MODUS is a thrilling story that raises questions about religion, human rights, and the very nature of love itself. It goes beyond conventional crime and peppers the story with red-hot political issues and the criticism of intolerance.