Ranulph Fiennes has travelled to the most dangerous and inaccessible places on earth, almost died countless times, lost nearly half his fingers to frostbite, raised millions of pounds for charity, and been awarded a polar medal and an OBE. He has been an elite soldier, an athlete, a mountaineer, an explorer,
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.