Five years ago, Susannah Harper's son Joel went missing without trace. Bereft of her son and then of her husband, Susannah has rebuilt her life around helping others. But then, on the last night of Hull Fair, a fortune-teller makes an eerie prediction. She tells her that this Christmas Eve, Joel will finally come back to her. As her carefully-constructed life begins to unravel, Susannah is forced to confront the buried truths of her family's past.