Bestselling thriller author Julian Lemar is about to write his final book. In search of inspiration, he decides to travel with his family to a secluded place with an appropriately mysterious atmosphere. On the first evening, during a severe thunderstorm, the power goes out in the house, and a short time later, a frightened woman knocks on the door. She claims that her husband has just killed their son and is now after her. Julian is in for one hellish night, which will plunge him into an abyss of danger and creepy mysteries.