Rex Williams

Florence and Chet Keefer have had a troublesome marriage. Whilst in the middle of a divorce hearing the judge encourages them to remember the good times they have had hoping that the marriage can be saved. (imdb)

Because of his German parentage, government agent Carl Steelman is assigned to by his chief, Craig, to join the Nazi Bund, to obtain information on the underground activities of the group. Steelman is welcomed and becomes a trusted member of the group. His father, Julius Steelman, unaware of this son's real mission, drives him from their home. The government agents raid a Bund meeting and Steelman assumes the identity of one of the members who was about to depart to Germany for training. (imdb)

Manhunt for a master of disguise.

A lawyer becomes a government secret agent after an agent-friend of his is murdered, and discovers a nest of Nazi spies operating out of a former client's hotel.