The new unputdownable thriller from the 'queen of the one-sit read', multi-million-copy bestselling author of THE COUPLE NEXT DOOR. When an elderly couple are found murdered, could their children be responsible? Every family has its secrets. Fred and Sheila Mercer have worked hard their whole lives. And it's paid off. They have a beautiful house in the dream neighbourhood and their three adult children have always had everything they could have wished for. The family has had it good. But now, after a family dinner, the Mercers are dead. Murdered. Their children are devastated, aren't they? Even as they are set to inherit millions. Surely a stranger is responsible and not one of them . . . This family's secrets are deadly.