A group of friends set off into the Scottish Highlands in search of a long lost cabin. Once far from civilization, an unforeseen tragedy befalls the group and one bad decision leads to suspicion, betrayal and murder.

Successful writer, Martin, is struggling following the death of his wife and child in a car crash. But when he meets grieving mother Lily at a bereavement group, his life changes and he starts to question the circumstances of the accident.