The Lone Wolf in London

Directed by Leslie Goodwins

With Gerald Mohr, Eric Blore, Nancy Saunders, Evelyn Ankers and Richard Fraser

Michael Lanyard is suspected of stealing two fabulous diamonds from a vault in Scotland Yard, where they were being held for safekeeping, but the Yard can't prove he did it. Later, Lanyard is summoned by a member of the nobility to help the latter raise money to pay a blackmailer. Lanyard later finds evidence to reveal the diamonds as having been stolen by a famous stage star.