Joan Bannister is the wife of globe-trotting war correspondent David Bannister who travels by his side. Returning to the US, Bannister becomes suspicious when Joan begins associating with suspected Nazi functionaries, and wonders if she may be the elusive “Madame Spy” wanted by American authorities.

Don Porter
as David Bannister

Constance Bennett
as Joan Bannister

Edward Brophy
as Mike Reese

John Litel
as Peter Rolf

Nana Bryant
as Alicia Rolf

Edmund MacDonald
as Lt. Cmdr. Bill Drake

John Eldredge
as Carl Gordon

Nino Pipitone
as Miro

John Dilson
as Proprietor Martin

Jimmy Conlin
as Caretaker Winston