Evil Peter Sutcliffe was fixated by jailbreak story The Shawshank Redemption, his letters reveal.
The Yorkshire Ripper read the Stephen King novella more than 50 times and dreamed of escaping, like its hero.
The book, full title Rita Hayworth and the Shawshank Redemption, came out in 1982 – a year after Sutcliffe was jailed for life for murdering at least 13 women.