The Lone Wolf tracks down Nazi spies in London during the German bombing.
Acting
Warren William's eyebrow acting deserves its own credit.
Direction
Dmytryk's pre-noir energy keeps 73 minutes tight.

Director
Edward Dmytryk
Trivia, insights & behind the scenes
Dmytryk would soon be blacklisted in Hollywood; this was his last studio film before the witch hunt began.
The Lone Wolf character appeared in 24 films across four decades—Warren William was the third actor, and many consider him the definitive smooth operator.