艾丝贝夫人搭乘(📼)下午(🏽)四时(🍩)五(🔼)十分(fèn )的快(kuài )(😘)车(chē ),前往梅契斯(sī )特(tè )探(🎺)望老朋(🎹)友(yǒu )玛波小姐。途中,在与一(yī )(💤)班列(🎾)车交汇时,艾丝贝由(🏇)窗口(📼)惊见那辆(liàng )列车上一(👑)名(🎩)女(nǚ )子遭人勒毙。然而报(bào )案后,警方却遍寻不到(📞)尸首。玛(🗑)波(bō )小姐(jiě )认(rèn )(🙁)为,此案应与铁(tiě )路线(😱)上(shàng )路(🤷)斯(🔊)佛宅(⏺)邸的克(kè )氏(shì )家族(zú )有关,于(yú )是进行(háng )暗中查(chá )探(💱)。后来克家仓(🥎)库的石棺中(zhōng )发现了一具女(nǚ )尸,整件疑案顿时(shí )有了转机…