In a small town near Madrid, Paquita and her brother Venancio, both single and with a childish personality, live under the shadow of their bossy older sister, Ignacia, a grumpy old maid.
| Directing | Fernando Fernán Gómez | Director |
| Writing | Luis García Berlanga | Idea |
| Writing | Pedro Beltrán | Screenplay |
| Writing | Pedro Beltrán | Screenstory |
| Writing | Manuel Ruiz Castillo | Screenstory |
| Camera | Hans Burmann | Camera Operator |
| Directing | Juan Estelrich March | Assistant Director |
| Camera | Julio Sánchez Caballero | Still Photographer |
| Art | Guillermo Alcázar | Property Master |
| Art | Jesús Sánchez | Property Master |
| Costume & Make-Up | Mercedes Guillot | Hairstylist |
| Costume & Make-Up | Maruja Hernáiz | Costumer |
| Sound | Felipe Fernández | Sound |
| Sound | Jesús Ocaña | Sound |
| Sound | Luis Castro | Foley Artist |
| Costume & Make-Up | Emilio Puyol | Makeup Artist |
| Editing | Rosa G. Salgado | Editor |
| Art | Sigfrido Burman | Production Design |
| Sound | Cristóbal Halfter | Original Music Composer |
| Production | Antonio López Moreno | Production Manager |
| Camera | José F. Aguayo | Director of Photography |
| Production | José López Moreno | Executive Producer |
| Production | Francisco Molero | Executive Producer |