Annie's mother is a serial killer. The only way she can make her stop is to hand her in to the police. But out of sight is not out of mind. The secrets of her past won't let her sleep, even with a new family and name - Milly. Now, surely, she can be whoever she wants to be. But Milly's mother is still a serial killer. And blood is thicker than water. She is, after all, her mother's daughter.