When a deadly snowstorm strikes the Icelandic highlands, four friends seek shelter in a small, abandoned hunting lodge. It is in the middle of nowhere and there's no way of communicating with the outside world. They are isolated - but they are not alone. As the night darkens, and fears intensify, an old tragedy gradually surfaces - one that forever changed the course of their friendship. Those dark memories could hold the key to the mystery the friends now find themselves in - and whether they will survive until morning.