Notorious (1946)

Post-WWII story of beautiful playgirl Alicia (Bergman), who's sent by the U.S. government to marry a suspected spy (Rains) living in Brazil. Cynical agent Devlin (Grant) is assigned to watch her. Duplicity and guilt are important factors in this brooding, romantic spy thriller. Suspenseful throughout, with a surprise ending. The acting is excellent all around and Hitchcock makes certain that suspense is maintained throughout this classy and complex thriller.