Sweeney Todd, the notorious Demon Barber, has been called the greatest mass murderer in English history. With the aid of an ingenious revolving chair and a cut-throat razor, he is said to have robbed and butchered more than 160 victims in his barber shop in Fleet Street, before taking the remains to nearby Bell Yard where his accomplice, Margery Lovett, cooked their flesh for her meat pies. Despite being as infamous in London's history as Jack the Ripper, Todd's story has been almost completely ignored by historians. In this definitive biography, Peter Haining delves into the grim underworld of London 150 years ago to expose the man behind the myth. Separating fact from fiction, he reveals a gruesome and bizarre story with a unique criminal heart.