Camp Nightmare investigates four of history's most infamous serial killers: Ed Kemper, H. H. Holmes, the BTK killer, and Robert Berdella.  These men are responsible for some of the most heinous crimes imaginable and in this episode we talk about what they did, why they did it, and their individual backstories.  From Berdella's unspeakable torture diary all the way to Holmes's legendary "murder castle".