Christmas Eve. A horse-drawn coach battles its way through a terrible snow storm, travelling the old Roman road that cuts across Wheeldale Moor. The carriage bears the miserable burden of Mr. and Mrs. Wilcox, a formerly well-to-do couple now fleeing London and the threat of debtor's jail, for Mr. Wilcox has been imprudent with the family fortune.

Not that Mrs. Wilcox cares much for money. She is still grieving a great loss, a loss that cannot be replaced with any number of riches.

As the weather worsens, the carriage is overturned, with deadly consequences. Mr. and Mrs. Wilcox find themselves out in a freezing storm, lost, injured and penniless upon the moors. Salvation comes in the form of Wheeldale Inn: the highest public house in Yorkshire. An isolated sanctuary, yet a peculiar one. The Innkeeper seems welcoming enough, but oddities abound: a corpse, a silent son, a surfeit of victuals, and memories that come and go at a whim.

As the intrepid guests settle in, they realise all is definitely not as it seems at Wheeldale. Both husband and wife are forced to confront truths about themselves, their past, their present, and their future in the most terrifying of ways. Will Christmas Day be a happy one for the Wilcox family, or will Wheeldale disrupt their lives so completely there is no coming back?