De film gaat over verschillende flashbacks die getoond worden aan de hand van de brief van Lisa, die Stefan leest vlak voordat hij eigenlijk zou vertrekken richting een duel (in Wenen anno 1900).
Nee, helaas is Letter from an Unknown Woman nog niet beschikbaar op Netflix in Nederland.
| Writing | Howard Koch | Screenplay |
| Sound | Daniele Amfitheatrof | Original Music Composer |
| Editing | Ted J. Kent | Editor |
| Sound | Glenn E. Anderson | Sound Designer |
| Camera | Franz Planer | Director of Photography |
| Production | William Dozier | Executive Producer |
| Art | Ruby R. Levitt | Set Decoration |
| Art | Russell A. Gausman | Set Decoration |
| Costume & Make-Up | Travis Banton | Costume Design |
| Production | John Houseman | Producer |
| Art | Alexander Golitzen | Art Direction |
| Directing | Max Ophüls | Director |
| Sound | Leslie I. Carey | Sound Designer |
| Writing | Stefan Zweig | Author |
| Costume & Make-Up | Virginia Tutwiler | Wardrobe Designer |
| Lighting | Tex Bellah | Best Boy Electrician |
| Art | Wally Kirkpatrick | Props |
| Camera | Roland Smith | Grip |
| Writing | Stefan Zweig | Novel |
