该片改编自阿兰扎苏·贝拉德雷·马林的真实故事，一名国家女警察以这个化名潜入恐怖组织ETA长达八年。
一位著名的商人女儿被杀害，辩护律师KittDevereux以谋杀案状告饶舌歌手，这位饶舌歌手有着吸毒和暴力史。然而律师却发现谋杀案和她的前夫有着莫大的关系，真相究竟是……
Old miss Marple is on a train ride when she witnesses a murder in a passing train. She reports it to the police but they won't believe her: since no body can be found there can't have been any murder, right? As always, she begins her own investigation. The murder was committed while passing Ackenthorpe Hall and miss Marple gets herself a job there, mixing cleaning and cooking while searching the house for clues.
