Paul and Steve investigate an intriguing case of robbery and murder. Making their getaway after raiding Harkdale bank, a gang of thieves are surprised by the police and a car chase ensues. When the robbers' car crashes, killing two of them, the police go to retrieve the money, but it is not there.
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.