Before MSN, Facebook, and the Internet within reach of all, young people communicated in a simpler way: using pencil and paper. Year 1997: hundreds of love letters come and go between the lyceum of girls and the boys' institute. Piñi, a shy girl with a deep secret, will see in the card the ideal opportunity to approach who has stolen her heart: Lizzie, her best friend.
| Writing | María Francisca Escobar Nachar | Screenplay |
| Production | Camila Ramírez | Executive Producer |
| Directing | María Francisca Escobar Nachar | Director |
| Writing | Daniela Faune | Writer |
| Camera | Patricio Aljaro | Director of Photography |
| Editing | Roberto Doveris | Editor |