The account of a professor of cinema and his two-decade long obsession with finding the original print of John Cassavetes' first film, 'Shadows'. It resulted in a book. This reminds me of other Quixotic film quests, like the fictional one described in Paul Auster's 'The book of illusions'. In William Gibson's latest, 'Pattern recognition', there also is a cult of film snippets being distributed anonymously on the web.