4.50 From Paddington probably sits squarely in the middle of Christie’s Miss Marple series – not a classic, but hardly one of the worst either. It certainly has a cracking premise at least. An elderly lady named Mrs McGillicuddy travels by train and shockingly comes face to face with a murder when she witnesses a woman being strangled in a train that briefly travels alongside hers. She promptly reports the crime, but no body is ever found and the officials dismiss her story as old lady ravings. The only person who believes Mrs McGillicuddy is her good friend Jane Marple, who knows that her friend lacks the imagination to make up a wild tale.