Thirteen years ago eighteen-year-old Hannah Docherty was arrested for the brutal murder of her family. It was an open and shut case and Hannahs been incarcerated in a secure hospital ever since. When psychotherapist Frieda Klein is asked to meet Hannah and give her assessment of her she reluctantly agrees. What she finds horrifies her. And Frieda is haunted by the thought that Hannah might be as much of a victim as her family; that something wasnt right all those years ago. And as Hannahs case takes hold of her, Frieda soon begins to realise that shes up against someone wholl go to any lengths to protect themselves.