Masterpiece Mystery While vacationing at an island resort in the Caribbean, Miss Marple learns that one of her fellow guests, Major Palgrave, possesses a photograph of a serial killer. But before he shows it to her, he recognizes someone and quickly... (more) puts it away. The next day he is found dead in his room, and the photograph is nowhere to be found. Another guest, business tycoon Jason Rafiel, becomes Miss Marple's ally and helps her piece together the puzzle, but they are too late to prevent more tragedy.