British Intelligence (1940)

Although the home of cabinet minister Arthur Bennett is a hotbed of spies, moles, and double agents, no one knows the true identity of notorious German spymaster Strendler.

Director:

 Terry O. Morse (as Terry Morse)

Writers:

 Lee Katz (screen play), Anthony Paul Kelly (based on a play by)

Stars:

 Boris Karloff, Margaret Lindsay, Bruce Lester - via IMDB

https://archive.org/details/BritishIntelligence1940