Something happened to Claire and Jo in Black Wood: something that left Claire paralyzed and Jo with deep mental scars. But with Claire suffering memory loss and no evidence to be found, nobody believes Jo's story. Twenty-three years later, a familiar face walks into the bookshop where Jo works, dredging up painful memories and rekindling her desire for vengeance. At the same time, Sergeant Davie Gray is investigating a balaclava-clad man who is attacking women on a disused railway, shocking the sleepy village of Banktoun. What is the connection between Jo's visitor and the masked man? To catch the assailant, and to give Jo her long-awaited justice, Gray must unravel a tangled web of past secrets, broken friendship and tainted love. But can he crack the case before Jo finds herself with blood on her hands?