Le Notti Bianche (White Nights)
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The story of White Nights (1957) is basically the same as that of the Dostoyevsky novel from which it is adapted. A lonely man meets a lonely girl. She is in love with a man whom she does not expect ever to return to her but who continues to occupy her life to the exclusion of any other possible relationships. The lover does return, she is vindicated, and the man who had befriended her and had hoped for her love is left behind, more isolated than before.