In Helene Tursten's The Treacherous Net, Detective Irene Huss faces unnerving crime and violence from all sides as she hunts down a psychopathic serial killer. Goteberg, Sweden sees an influx of disturbing murder cases and Irene's unit is stretched thin. When a girl's body is found wearing what appears to be the same set of lingerie found near another corpse, Irene and her colleagues embark on a desperate hunt that takes them deep into a shadowy world of anonymous online predators and insecure teenage girls on a deadly quest for affirmation.