In the depths of a harsh winter, following the death of their grandmother, Erica Calcott and her sister Beth return to Storton Manor, a grand and imposing Wiltshire house where they spent their summer holidays as children. When Erica begins to sort through her grandmother's belongings, she is flooded with memories of her childhood - and of her cousin, Henry, whose disappearance from the manor tore the family apart. Erica sets out to discover what happened to Henry, so that the past can be laid ...