A dazed woman walks the streets of Los Angeles looking for a man named David. After collapsing in a diner, she’s taken to the psychiatric ward of a nearby hospital. Flashbacks reveal her obsession for David as a result of borderline personality disorder which ultimately leads to murder.
In order to help bring Nazis to justice, U.S. government agent T.R. Devlin recruits Alicia Huberman, the American daughter of a convicted German war criminal, as a spy. As they begin to fall for one another, Alicia is instructed to win the affections of Alexander Sebastian, a Nazi hiding out in Brazil. When Sebastian becomes serious about his relationship with Alicia, the stakes get higher, and Devlin must watch her slip further undercover.
During the campaign for reelection, the crooked politician Paul Madvig decides to clean up his past, refusing the support of the gangster Nick Varna and associating to the respectable reformist politician Ralph Henry. When Ralph’s son, Taylor Henry, a gambler and the lover of Paul’s sister Opal, is murdered, Paul’s right arm, Ed Beaumont, finds his body on the street. Nick uses the financial situation of The Observer to force the publisher Clyde Matthews to use the newspaper to raise the suspicion that Paul Madvig might have killed Taylor.
Union officer Kerry Bradford escapes from a Confederate prison and races to intercept $5 million in gold destined for Confederate coffers. A Confederate sympathizer and a Mexican bandit, each with their own stake in the loot, stand in his way.