Paul Dehn was the screenwriter for which 1974 British mystery?
Murder on the Orient Express (1974 film) Murder on the Orient Express is a 1974 British mystery film directed by Sidney Lumet, produced by John Brabourne and Richard B. Goodwin, and based on the 1934 novel of the same name by Agatha Christie.
The Judas Window The Judas Window (also published as "The Crossbow Murder") is a famous locked room mystery novel by the American writer John Dickson Carr (1906–1977), writing under the name of Carter Dickson, published in 1938 and featuring detective Sir Henry Merrivale.