Moira Martingale's comprehensive study, Cannibal Killers: The Impossible Monsters, was originally written in 1993, when the internet was in its infancy. The book, a bestseller, tracked the phenomenon of cannibalistic murderers throughout history. Then came the World Wide Web. In this comprehensively updated edition we see that in the twenty-first century, cannibals who thirst for human flesh and blood are still among us, and, alarmingly, they have moved online to find their victims. Included in the grisly gallery of killers are Jeffrey Dahmer, Austin Harrouff (Florida), John Johnson (Montana), Hamilton Albert Fish, the 'Brooklyn Vampire', Richard Chase, the 'Vampire of Sacramento' and Luka Magnotta, the Canadian killer whose true story inspired Netflix's 'Don't F*ck with Cats'.