The Unsleeping Eye is a 1974 science fiction novel by British writer David G. Compton. It was published in the United Kingdom as The Continuous Katherine Mortenhoe in 1974 and was filmed by Bertrand Tavernier in 1980 as Death Watch, starring Harvey Keitel, Romy Schneider and Max von Sydow. Subsequent editions of the novel were published as Death Watch. Source: Wikipedia (en)