811 AD, a family, isolated in their home, deep in the woods a few days travel from Birka. They are poor. The hunting and fishing has been bad for some time, and the father, Joar, takes the desperate measure of going on a Viking raid. Joar does not return for a long time, and the family starts to fear he never will. Runa, the oldest daughter, takes over her fathers chores in his absence. She misses him dearly and nourishes a tender hope that he, once again, will return to them. But in her heart, somehow she knows, that the suffering of the family has just begun. There is something in the air, something in the water, the wind and in the soil. Runa is becoming aware of something vile, something dangerous out in the forest. One day when she is out hunting, she finds a bleeding man, a warrior, almost unconscious. She brings him inside and the family tend to his wounds. As he heals, she realizes he is sent to protect the family from an approaching evil. And he brings news of her father.

在不久的将来，人类文明遭遇未知力量的毁灭性打击。逃入森林伸出的席默思发现了一个地下避难所，里面居住着一名自称康拉德的男人，与他声称陷入昏迷的妻子。 无法安全离开此处的二人必须在这个地下避难所分享有限的食物与空间。就如一切恐怖故事所揭示的命运一样，某种超乎寻常的危机正在悄然发生……

一个连环杀手连续13个冬天在圣诞节前夕行凶，马上就要圣诞节了，调查人员与时间赛跑，争分夺秒想要弄清楚这位圣诞杀手的下一个目标是什么。

艾利亚斯（麦斯·米科尔森 Mads Mikkelsen 饰）和盖布里尔（大卫·丹席克 David Dencik 饰）虽然是情同手足的兄弟，却有着截然不同的性格。盖布里尔在大学里教书，过着拮据而又孤独的生活，而向来风流不羁的艾利亚斯则流连于女人堆中，自由而又快活。　　一天，两兄弟接到了一个意外的电话，得知了父亲去世的消息，在父亲留下的录影带中，两人震惊的发现，他们竟然不是父亲的亲生孩子，而他们真正的父亲，此时此刻正生活在奥克尼郡岛上。于是，艾利亚斯和盖布里尔踏上了前往奥克尼郡岛的旅途，可到了那里之后，他们才发现，岛上的一切，和他们想象中的是那样的不同。