30 Years Inside with the UK's Biggest Villains. Convicted murderer Billy Ferris has endured more than 3 decades behind bars in many of Britain's prisons. In 'The Hate Factory', he candidly documents his experiences in jail with some of the UK's most notorious criminals. Mixing humorous anecdotes with chilling recollections, the book reads like a who's who of crime, with Ferris's path having crossed those of many infamous villains, from bombers and bank robbers to gangland murderers and cannibals.