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.
Elenco: Ingrid Bergman , Cary Grant , Claude Rains , Leopoldine Konstantin , Louis Calhern , Alex Minotis , Reinhold Schünzel , Ivan Triesault , Friedrich von Ledebur , Peter von Zerneck , Eberhard Krumschmidt , Moroni Olsen , Ricardo Costa , Charles Mendl , Wally Brown , Fay Baker , Fred Nurney , Charles D. Brown , Eddie Bruce , Ben Erway , Donald Kerr , James Logan , Emmett Vogan , John Vosper , Alan Ward , Paul Bryar , George Lynn , Frank Marlowe , Howard Negley , Virginia Gregg , Bea Benaderet , Aileen Carlyle , Elizabeth Wilson , Almeda Fowler , Leota Lorraine , Sandra Morgan , Lillian West , Richard Clarke , Francis McDonald , Alfred Hitchcock , Frank McLure , Tom Coleman , Alfredo DeSa , Bess Flowers , Art Howard , Jeffrey Sayre , Bert Moorhouse , Gavin Gordon , Harry Hayden , Warren Jackson , Thomas Martin , Tina Menard , Howard M. Mitchell , Antonio Moreno , Garry Owen , Dink Trout , Lenore Ulric , Frank Wilcox .