The cabin turns out to be the home of a Vittra, and the friends have to fight for their lives, aided by the hunter Gunnar (Johannes Brost).
While walking to the cabin, the group notices Gunnar watching them from a cliff and the aggressive Simon shouts him off.
The group finds the cabin locked, contrary to the information given by Albin's father, Olof.
While Albin tries to pick the lock on the front door, his friend Marcus finds an open window on the backside and talks Marie into climbing in to scare the others.
The gang throws a party, but Marie's sickness gets worse and she attacks Tove, biting off her lip, and then spits blood in Linnea's eyes.
Gunnar informs the group that the Vættr have the ability to steal the souls of the living by looking in their eyes, turning them into the undead.
Simon and Linnea arm themselves with shovels in the shed and go to fetch police aid which Albin was called for.
Gunnar proceeds to beat Tove into a pulp before carving off her head with his fishing knife.
Simon notices infection in Linnea's eyes and beats her unconscious and buries her alive.
Overcome with grief over his action, he ignores his instruction and goes back to the cabin to save his sister.
Marcus turns into an undead and Albin and Ida hide upstairs, unable to escape.
Albin is unable to save her and rushes to the shed and grabs Gunnar's rifle and manages to blow off Simon's head with a point-blank gun blast.
However, Albin closes his eyes and turns off the lights, rendering the ancient and fragile creature powerless.
Hellquist still makes a small, uncredited appearance as the voice of the police Albin talks to over the phone.
[6] Fangoria gave the film a 2/5 score and the reviewer stated that it felt rather uncomfortable that most of the victims were females and they were all brutalised by men as undead.