Control / Hugh Montgomery.

"Renowned surgeon Michael Trenchard locks his office door and prepares for a relaxing evening - Wagner on the sound system, a fine Scotch to hand. A knock at the door heralds the arrival of the person he most wants to see - the person who excites him more than anyone else. But what follows will turn his dreams into a living nightmare . . . for he will be discovered later that night in a locked-in coma, the victim of an auto-erotic asphyxiation. Can this really be an accident? It is left to Dr Kash Devan, Trenchard's young protege, to uncover the truth. What he discovers is chilling: in his ruthless pursuit of wealth and success Trenchard has left a trail of wrecked lives behind him. Which of his victims hated him so much they wanted not only his life, but also his reputation ruined?"--Publisher description.