A young woman teaches commercial writing and makes her students practice by writing letters addressed to an imaginary recipient from Vienna. One day, the love letter the woman writes to this non-existent man is accidentally sent by one of her students –and falls into the hands of a real person.
| Directing | Vittorio De Sica | Director |
| Writing | László Kádár | Theatre Play |
| Writing | Miklós Kádár | Theatre Play |
| Camera | Mario Albertelli | Director of Photography |
| Editing | Mario Bonotti | Editor |
| Art | Gastone Medin | Production Design |
| Production | Giorgio Genesi | Production Manager |
| Writing | Ferruccio Biancini | Screenplay |
| Sound | Nuccio Fiorda | Original Music Composer |
| Sound | Emilio Rosa | Sound |
| Directing | Maria Stephan | First Assistant Director |
