Marple: The Mirror Crack'd From Side to Side (2010 Tom Shankland)

Fun episode, adapted by Kevin Elyot, who wrote Twenty Thousand Streets Under the Sky, Clapham Junction and other Marples, based on Christie's 1962 novel which was dedicated to Margaret Rutherford.

Good cast of Joanna Lumley (who's perhaps just a shade over in places but great), Hugh Bonneville and Lindsay Duncan, with solid support from people like Neil Stuke, Caroline Quentin, Victoria Smurfit, Martin Jarvis and Charlotte Riley (Press, Trust, Close to the Enemy).

There's a passage of music which sounds exactly like it's from the flashback scenes from the film version of Murder on the Orient Express. So either Mr Scherrer is being a bit naughty or there's thievery at work.