Gumnaam (1965)

At a night club 7 seven people win a lucky draw where the get an holiday package.The plane they are traveling develops a snag and makes emergency landing in the jungle.The plane dumps luggage of all the members including a co pilot and flies back leaving everyone stranded in the jungle.While trying to make way out of the jungle they hear a female singing mysteriously .The members follow the voice and reach a mansion where the butler welcomes them saying he was waiting fro them.He hands over a letter to them which says that they were all part of a crime and one by one will be killed.