A Caribbean mystery

Would You Like To See A Picture Of A Murderer? So Asks A Stranger Of Miss Jane Marple While She Is Vacationing On Luxurious St. Honore. Before She Has A Chance To Answer, The Mystery Man Vanishes, Only To Be Found Dead The Following Day. Now Miss Marple Is Asking The Questions: What Happened To The Curious Photo: Why Is The Hotelier Prone To Nightmares? Why Doesn't The Most-talked-about Guest, A Reclusive Millionaire, Ever Leave His Room? Any Why Is Miss Marple Fearing For Her Own Life?