Wer stirbt schon gerne unter palmen (1974)

The wealthy plantation owner Pinaud is brutally murdered in Ceylon. His attractive German wife Anne is suspected of the crime and arrested by Inspector Cerdan. He is ordered to take her to Colombo. But the plane on the way there gets caught in a heavy storm and crashes shortly afterwards. Anne Pinaud and Cerdan are the only survivors of the crew and save themselves on a desert island. There they come across Werner Becker, who has been shipwrecked with his yacht and is also stranded here. While Cerdan continues to believe Anne is guilty of the crime, Werner believes she is innocent. Soon the tension between the two men builds up and they become rivals for Anne's favor.