父母失踪后，两姐妹搬到了一个童话成真的神奇小镇。

一年前，女主角在贝茨旅馆举行的表演上看到她最好的朋友不幸被烧死。一年后旅馆重新开业，女主角去那故地重游试图治疗心灵创伤。却是遇上不断有人死亡，这背后到底隐藏着什么不为人知的真相呢？

A letter for Miss Marple from a recently deceased friend promises a large reward for investigating a crime - without telling her who was involved, or when it happened! When she accepts, she is given a reservation for a coach tour of historic homes and gardens. She has fifteen fellow-passengers - and one of them knows a murderer's secret and someone is preparing to kill.