After Miss Marple's friend witnesses a murder in a railway carriage running parallel to her own, Miss Marple engages a resourceful young woman to investigate. The search leads to a decrepit estate, where they suspect the body was dumped. But the seemingly innocent family who lives there have secrets of their own.
Quest roles:
Andrew Burt, Joanna David, John Hallam, Jill Meager, Jean Boht, Maurice Denham