Question: What F.L. Green novel is the basis for the film of the same name starring James Mason?
Context: I Met a Murderer is a 1939 British thriller film directed by Roy Kellino and starring James Mason, Pamela Mason, Sylvia Coleridge and William Devlin.  A man murders his oppressive wife and flees from the police.  He meets a young woman who suspects his identity as the murderer, but conceals this because she wants to use the story for a book. Caught is a 1949 American film noir directed by Max Ophüls, and starring James Mason, Barbara Bel Geddes and Robert Ryan.  "Caught" was based on a novel by Libbie Block.  Child actor Jimmy Hawkins had a small role in the film. The Lost Man is a 1969 American drama film, written and directed by Robert Alan Aurthur, loosely based on F.L. Green's novel "Odd Man Out", which was made originally into a 1947 film with James Mason. Troubled Waters is a 1936 British mystery film directed by Albert Parker and starring James Mason, Virginia Cherrill, Alastair Sim, Raymond Lovell and Sam Wilkinson.  A government agent (James Mason) exposes smugglers in a British town with a dwindling spring mineral water business. Stranger In The House is a 1967 crime drama directed and written by Pierre Rouve (from the novel by Georges Simenon), produced by Anatole de Grunwald, and starring James Mason, Geraldine Chaplin, and Bobby Darin.  The movie is also known as Cop-Out and is a remake of the 1942 French film "Strangers in the House" ("Les inconnus dans la maison").  The film was remade in 1997. Odd Man Out is a 1947 British film noir set in an unnamed Northern Irish city and directed by Carol Reed.  It is based on the novel by F. L. Green and stars James Mason and Robert Newton. Lady Possessed is a 1952 American mystery film directed by Roy Kellino and William Spier starring James Mason, June Havoc and Stephen Dunne.  Mason and his wife Pamela produced and wrote the film themselves, based on Pamela's novel "Del Palma", (originally published as "A Lady Possessed" in Britain, 1943).  They chose Pamela's ex-husband Roy Kellino, with whom she remained close, to direct the film.  It was a critical and commercial failure, losing the Masons much of the money they had invested in it. Frederick Laurence Green (1902–1953) was a British author who had 14 titles published between 1934 and 1952.  He is best known for his 1945 novel, "Odd Man Out", which was filmed by Carol Reed, also as "Odd Man Out", in 1947.  The novel was also used as the basis of the 1969 Sidney Poitier movie "The Lost Man" (1969). This Man Is Dangerous (U.S. title: The Patient Vanishes) is a 1941 British thriller film, directed by Lawrence Huntington and starring James Mason and Gordon McLeod.  The film is based on the novel "They Called Him Death" by David Hume. Marshall Kent (October 6, 1908 - January 15, 1985) was an American television and film actor who appeared in 30 television series or films between 1956 and 1977.  He was best known for his role as "Doc" in the 1958 spoof of "Gunsmoke" presented as an episode of "Maverick" starring James Garner entitled "Gun-Shy."  He also appeared in various other series including "Dragnet" with Jack Webb, "Perry Mason" with Raymond Burr, "The Deputy" with Henry Fonda, "The Gray Ghost", "The Millionaire", "Highway Patrol" with Broderick Crawford, "General Electric Theater", "The Loretta Young Show", "Dennis the Menace", "The Thin Man", "Room 222", "The Wonderful World of Disney", "The Doris Day Show", and "Little House on the Prairie".  He was also a supporting player in films including "Beyond the Valley of the Dolls", "The Decks Ran Red" with James Mason and Dorothy Dandridge, "Teenage Thunder", "Ring of Fire" with David Janssen, and "The Last Voyage" with Robert Stack and Dorothy Malone.
Answer: Odd Man Out