"Would you like to see a picture of a murderer?" Jane Marple is asked by a stranger whilst on an exotic holiday in the Caribbean. But before she has a chance to answer, the man vanishes, only to be found dead the next day. But what happened to the photo? Why is the hotelier prone to nightmares? Why doesn't the most talked-about guest, a reclusive millionaire, ever leave his room? And why is Jane Marple fearful for her life?...