Willing Flesh by Adam Creed

Christmas is coming and DI Staffe is trying to make a go of things with his girlfriend, Sylvie. A murdered woman is discovered in a city hotel room: Elena Danya, a high-end prostitute. Staffe investigates, but then a friend of hers is found dead and their mutual aristocratic friend, Arabella, goes missing. The evidence points to a voyeuristic predator, Graham Blears. However, Staffe is drawn away from the city to a tangled menage involving a City banker, a Russian oligarch and a Turkish playboy, pushing into the higher echelons of the British establishment, whose barricades begin to stonewall the investigation. Then Pennington, his Chief, cuts him loose and suddenly Staffe becomes the hunted - with grave consequences for the women who are close to him.