Christmas Blood is a thriller-slasher about a feared serial killer, called Nissen, who has struck Norway's countryside every Christmas Eve for over 13 years. Investigators Rasch and Hansen is trying to solve the riddle before he returns. This time it appears that it is northern Norway that will face Nissen's bloodbath.

Two German soldiers has taken a Norwegian soldier as prisoner, during one of the cold Scandianvian winter nights during WW2. They are thankful that they find a lonely house out in the wilderness, but the houses aren't that cozy after all.