Matanzas, Cuba, 1913. Two young people who are in love communicate through letters written by penman. When the young man leaves town, to become a pilot, the girl discovers she is really in love with the one who wrote the letters.
| Directing | Tomás Gutiérrez Alea | Director |
| Editing | Miriam Talavera | Editor |
| Writing | Eliseo Alberto | Writer |
| Writing | Gabriel García Márquez | Writer |
| Writing | Tomás Gutiérrez Alea | Writer |
| Production | Santiago Llapur | Producer |
| Camera | Mario García Joya | Director of Photography |
| Production | Max Marambio | Executive Producer |
| Sound | Gonzalito Rubalcaba | Music |
| Costume & Make-Up | Miriam Dueñas | Costume Design |
| Costume & Make-Up | Aymara Cisneros | Makeup Artist |
| Costume & Make-Up | Graciela Grossas | Makeup Artist |
| Costume & Make-Up | Lisette Revilla | Makeup Artist |
| Sound | Germinal Hernández | Sound |
| Art | Fernando Pérez O'Reilly | Set Designer |