1984. “The Summer of Fear,” as journalists dubbed it. Three teenage girls accidentally saw in the forest how an unknown person was strangling a woman. Her body was not found, and soon two of her friends were killed right in the house of the third witness to the crime, Darby. Neither the police nor the FBI were able to catch the killer. Twenty-two years later, Darby, who has become a criminologist, is again faced with cases of missing women. And their number may have already exceeded a hundred...