瑪波小姐來到英國的小鎮，穿梭於過去與現在，為富家小姐Gwenda破解一個浮現在幻覺中的謎團。Gwenda自從遷到英國一間大屋居住後，就經常在夜深人靜時看見一幕幕驚心動魄的謀殺片段。神探瑪波小姐相助Gwenda查案，經過與不同人物交談及詳細調查後，瑪波小姐終為Gwenda查出一宗在她童年時目擊的謀殺案真相，Gwenda更因而發現一些自己早已被遺忘的童年往事……

2004年起由英国ITV出品的系列剧“Agatha Christie's Marple”，根据Agatha Christie原著作品改编，其中前三季马普尔小姐扮演者为Geraldine McEwan，第四季起改为Julia McKenzie，截至2010年共拍摄五季，每季四集，内容包括：
第一季：藏书室女尸之谜、寓所谜案、谋杀启事、命案目睹记
第二季：沉睡的谋杀案、魔手、煦阳岭的疑云、斯塔福特疑案
第三季：零时、复仇女神、无妄之灾、伯特伦旅馆之谜
第四季：黑麦奇案、杀人不难、借镜杀人、悬崖上的谋杀
第五季：破镜谋杀案、蓝色天竺葵、名苑猎凶、白马酒店

Agatha Christie's Marple (or simply Marple) is a British ITV television series based on the books and short stories by British crime novelist Agatha Christie. The title character was played by Geraldine McEwan from the first to third series, until her retirement from the role, and by Julia McKenzie from the fourth series onwards. Following the conclusion of the sixth series, it was announced that the BBC had acquired the rights for the production of Agatha Christie adaptations, suggesting that ITV would be unable to make a seventh series of Marple.