"Gumnaam: The Mystery" is a 1965 Indian thriller film directed by Raj Khosla. The story revolves around a group of people who find themselves stranded on a deserted island after their plane crashes. As they try to survive, they encounter mysterious occurrences and a series of murders, leading to a suspenseful atmosphere. The film features notable performances by actors such as Mohan Choti, Ameeta, and Pran. It is well-known for its engaging plot and memorable music, including the popular song "Gumnaam Hai Koi," which has become iconic in Indian cinema. The film remains a classic in the thriller genre.