After a final night shift he is going to quit the force, work for crooked lawyer Biddel (Edward Arnold) and shack up with a stripper called Angel Face (Mala Powers)! Well it is good to have a plan, unfortunately nothing really goes to plan that night for Johnny.
The events slowly unfold that night in Chicago as Biddel's scheme for Johnny (arrest the upstart Hayes Stewart (William Talman) and dump him over state lines) falls apart and Johnny suffers a terrible loss. All the while he is being shadowed by a rather strange Sergeant (Chill Wills).
This is a rich Noir full of suspense though played with a light touch and a touch of the mystical, sharp dialogue and quirky oddities. It includes a man who's job is to pretend to be a robot in a club window!