The latest relentless thriller from Arrow's master of medical suspense The wealthy and powerful CEO of a large health care company is found brutally murdered. She is not the first to die - nor will she be the last... A vicious serial killer is on the loose, and the victims have one thing in common- they are all high-profile executives in the healthcare industry. As a member of the Hippocrates Society, Dr Will Grant is fighting to reclaim the medical profession from the many companies profiting wildly from controlling the delivery of care. But the doctor's determination has attracted a dangerous zealot, and soon Will finds himself both suspect and victim, a pawn in a deadly endgame. Alongside detective Patty Moriarity, Will sets out to track down the killer.They have little to go on except for a cryptic message that grows longer with each murder- a message Grant and Moriarity must decipher if they are to save themselves becoming the next victims...