Tiger in the Smoke

Meg, a WWII widow, is about to marry the affluent Geoffrey, but over the last three months, she's been receiving envelopes that include a photo of a man who appears to be her dead husband, Martin. Accompanying the last photo was a note telling her to meet Martin on the 3:23 Southend train on the 1st of November. Fearing blackmail, Meg and Geoffrey have contacted the police, and Chief Inspector Luke (Christopher Rhodes) and a handful of men are there to grab the man who may or may not be Martin.