Espionage thriller from master of suspense Alfred Hitchcock. Alicia Huberman (Ingrid Bergman) is a social butterfly recruited by the American government to work as a spy in Rio de Janeiro in the years directly following World War Two. Helped by fellow agent Devlin (Cary Grant) - who soon falls in love with her - she is ordered to seduce and marry Alexander Sebastian (Claude Rains), a member of a covert group of exiled Nazis. She succeeds in marrying Sebastian, and uncovers a Nazi plot to stockpile uranium, but when Sebastian himself realises who his wife is working for, he begins to plot to get rid of her.