DI Rebus is buried under a pile of paperwork but an escalating dispute between the upstart Tommy Telford and Big Ger Cafferty's gang gives Rebus an escape clause. Telford is known to have close links with a Chechen gangster bringing refugees into Britain as prostitutes. When Rebus takes under his wing a distraught Bosnian call girl, it gives him a personal reason to make sure Telford goes back to Paisley and pronto.
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.