Agatha Raisin has never been one for enforced holiday cheer, but her friendly little village of Carsely has always prided itself on its traditional Christmas festivities. However, this year Mr John Sunday, an officer, has chosen Christmas as the time to crack down on what he sees as gross misconduct by everyone.
The first message sent to Tom Thorne's phone was just a picture - the blurred image of a man's face, but Thorne had seen enough dead bodies to know that the man was no longer alive. But who was he? Who sent the photograph? And why? While the technical experts attempt to trace the sender, Thorne searches the bulletins for a reported death that matches the photograph. Then another picture arrives.