Having been thoroughly entertained, and terrified, by the original movie, I only recently discovered, following a TV documentary, that it was based on a true story. Needless to say, I tracked down a copy of the book, and look forward to reading it as and when time allows. An initial scan shows this is a very detailed, and painstakingly researched book. Highly recommended.My order was dispached very quickly, and received in pretty much 'as new' condition.