When a train swerves towards the 4. 50 from Paddington, Elspeth McGillicuddy sees a woman in the parallel carriage being strangled, with the murderer's shape silhouetted against the window. The authorities think that Miss McGillicuddy must have been dreaming - there is no trace of a body - but her old friend Miss Marple knows better and the two elderly ladies begin their own investigation into the mystery.
4:50 From Paddington Photos
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