The List of Adrian Messenger

British Army Col. Anthony Gethryn (George C. Scott) is contacted by his old friend, Adrian Messenger (John Merivale), to investigate 11 men, whose names Messenger provides. After a plane carrying Messenger is blown up by a mysterious perpetrator, Gethryn determines that the men on the list had been prisoners of war in Burma during World War II — and that someone connected to a minor British aristocrat (Clive Brook) is methodically murdering each man on the list.