The year is 1926. Having run away from home in the dead of winter, three children finds themselves alone in a forest, on the verge of freezing to death. And then, in the distance, they spot an abandoned house. For Jack, Jenny and George, the discovery of Hadlow House feels like a miracle. They manage to break inside and start a fire, and for a short while they feel as if they've been saved. But then they start to notice something strange about...