He is known by many names - the Beast of Chicago, the Devil in the White City, or the Torture Doctor. But what H. H. Holmes is probably most well known for is his infamous "Murder Castle." While it is widely debated how many actual murder victims Holmes accumulated in his life, his reputation and the mystery surrounding his life and crimes has made him one of America's most infamous serial killers. In this week's episode, Mel tells us about not just the murders Holmes committed or was suspected of, but of his many other crimes, writings, and wives.