The Teckman Mystery

John Justin is a writer flying home to London to argue that he shouldn't write the biography of a test pilot whose plane crashed. As he sits on the plane, Margaret Leighton is seated next to him, reading a magazine with a story by him. They get to chatting and he discovers she is the sister of the pilot. He decides to write the book, but as he does his research, the people he wishes to speak to keep dying.

It's a nice little mystery, with director Wendy Toye adhering to many of the conventions of the British film genre, including the police actually knowing how to do their job. It's not a terribly deep mystery, but it does turn into an interesting movie in terms of suspense: The audience and Justin have all the clues they need, and Justin's inability to see the solution puts him at risk. It makes you want to shout at him.