During his twenty-five year career with the Investigative Support Unit, Special Agent John Douglas became a legendary figure in law enforcement, pursuing some of the most notorious and sadistic serial killers: the man who hunted prostitutes for sport in the woods of Alaska, the Atlanta child murderer, and Seattle's Green River killer, the case that nearly cost Douglas his life. Now, in chilling detail, Douglas takes listeners behind the scenes of some of his most gruesome, fascinating, and challenging cases, and into the darkest recesses of their worst nightmares.