Everyone is searching for Billy Brogan and his sister, Marianne. Marianne's ex-husband Kenneth Scott is gunned down in his home and two men are found dead in Billy's West End flat. But Billy is on the run to Spain, with the money that was meant to pay the hit man who killed Kenneth. Now the hit man remains in Glasgow, seeking not just his fee for his job but the elusive Marianne. The woman has been a mature student of Dr Solomon Brightman, psychology lecturer at Glasgow University, criminal profiler and friend and confidante to DCI Lorimer. DCI Lorimer is given the news that psychological profiling is no longer allowed following a case of wrongful arrest down South, but can his friendship with Solly produce the necessary clues in this case? And will Solly be able to find his missing student before time runs out for her?
There's a hitman in Glasgow: unpaid and angry, he's decided to settle his own debts...
Marianne Brogan can't sleep. She's plagued by a nightmare: someone in the shadows, whispering threats, stalking her every move. To make matters worse, Marianne can't get hold of her brother, Billy. Despite knowing some shady characters from Glasgow's underworld, Billy's always been there for her - until now.
Meanwhile, DCI Lorimer and his team are faced with a string of seemingly unconnected but professional killings. Without witnesses or much conclusive evidence to build a case, the officers are drawing a blank. Criminal psychologist Solly Brightman is off the case due to budget cuts. But Solly is more closely connected to the murders than he could possibly know . . . And as the hitman plans a bloody ransom to get his fee, the race is on to find out just who hired him - and who's next on the hit list.