A heat wave has descended upon the Netherlands. In Amsterdam, windows and doors are open around-the-clock to improve ventilation. Unwittingly, this also benefits a violent predator who is sexually assaulting women. The victims describe being attacked in their homes by a man wearing a Jason hockey mask and threatening them with a hunting knife.On a hot July evening — two weeks into the stalker’s reign — Inspector Rinus Rompa is summoned to a brutal double homicide. The stalker leaves a terrifying clue at the crime scene, indicating that he is now targeting couples. While the Amsterdam Criminal Investigation Department struggle for a breakthrough to stop the stalker from adding to the body count, Rompa has the uneasy feeling that he and his girlfriend are also being targeted. Can he refute the evidence that if the stalker is watching, it is already too late?Amsterdam Stalker is the third book featuring Inspector Rinus Rompa and his colleagues from the Amsterdam Criminal Investigation Department.