Anna Gravess whole life has recently been turned upside down. A new mother, shes just gone back to her job as a radio presenter and is busy navigating a new schedule of late night feeding and early morning wake ups while also dealing with her newly separated husband. Then the worst happens. While Anna is walking on the beach with her daughter, shes attacked by a crazed teenager. Terrified, Anna reacts instinctively to protect her baby. But her life falls apart when the schoolboy dies from his injuries. The police believe Annas story, until the autopsy results reveal something more sinister. A frenzied media attack sends Anna into a spiral of self-doubt. Her precarious mental state is further threatened when she receives a chilling message from someone claiming to be the "Ophelia Killer," a serial killer who preyed on the town twenty years agoand who abruptly stopped when Annas father committed suicide. Is Anna as innocent as she claims? And is murder forgivable, if committed to save your childs life?