While traveling on a train to London, Miss Marple is told by a woman she has never met, Lavinia Pinkerton, that she is certain there have been two murders in her village of Wychwood. When Lavinia dies in what is purported to be an accident - she fell, or was pushed, down the escalator in a tube station - Miss Marple decides to visit Wychwood and see what she can find. (imdb)

A reformatory for delinquent boys run by Miss Marple's philanthropic friend becomes the scene of arson and poisoning, and ultimately murder. (imdb)

The cryptic final words of a dying man lead Miss Marple and two young adventurers to a dysfunctional family harboring dark secrets. (imdb)