For years, the Stranger House has stood in the village of Illthwaite, offering refuge to travellers. People like Sam, a brilliant young mathematician, who believes that anything that can't be explained by maths isn't worth explaining. And Miguel, a historian running from a priests' seminary, who sees ghosts. Sam is an experienced young woman, Miguel a 26-year-old virgin. But both want to dig up bits of the past that...
Criminal investigating officer Hanne Wilhelmsen considers the possibility of a serial killer as she tracks down a series of numbers written in blood appearing on walls all over Oslo.