When Tommy and Tuppence visit an elderly aunt in Sunny Ridge nursing home, Tuppence is concerned by one resident -- Mrs. Lancaster's -- ramblings about a dead child behind the lounge fireplace.


Geraldine McEwan as Miss Marple

Soon after, Aunt Ada dies and Mrs. Lancaster disappears in the same evening. Tuppence suspects that an old painting of 'The Witch's House' and a warning note recovered from Ada's room reveal clues to both women's unexpected departures.