In the Peak District village of Scarsdale, thirteen-year-old girls didn't just run away. So when Alison Carter vanished in the winter of '63, everyone knew it was a murder. Catherine Heathcote remembers the case well - a child herself when Alison vanished. Now a journalist, she persuades DI George Bennett to speak of the hunt for Alison. But when a fresh lead emerges, Bennett tries to stop the story – plunging Catherine into a world of buried secrets and revelations.