The Stranger by Orson Welles 1946

The Stranger by Orson Welles 1946
Set Connecticut after World War II, The Stranger is a cat and mouse game between Wilson (Edward G. Robinson), a member of the Allied War Crimes Commission and Franz Kindler (Orson Welles), a Nazi who has assumed the false identity of Dr. Charles Rankin.
To complete his new intelligentsia disguise, Kindler marries Mary Longstreet, daughter of a Supreme Court justice.