Meet Amy Winter: Detective Inspector and daughter of a serial killer. Detective Inspector Amy Winter hopes to follow in the footsteps of her father - a highly respected police officer. But when she receives a letter from her prison cell from Lillian Grimes - one half of a notorious pair of serial killers - she learns something that will turn her life upside down. Lillian, who is responsible for dozens of murders that took place decades ago, is a devil in the making. A psychopathic killer. And Amy's biological mother. Now she's finally willing to reveal the locations where she hid three of her victims—but only on the condition that Amy buys into her game. While her colleagues frantically search for a girl who disappeared from the rafters of her mother's house, Amy must face her own dark past. She is haunted by vague memories of the sister who sacrificed herself to save her. Amy races against time to find the missing bodies. But what if Grimes behind bars is pulling more strings than Amy realizes? And he can defeat his demons and prevent more