Lucas, typical average Spaniard, shy, gray and repressed, is married to sanctimonious Enriqueta, so he is always aware of other women, although the couple are already parents of nine children, which is why Lucas will do the unspeakable to convince his wife to take the contraceptive pill, something practically sinful for a practicing Catholic like Enriqueta.
| Directing | Manuel Summers | Director |
| Writing | Juan Miguel Lamet | Writer |
| Writing | Manuel Summers | Writer |
| Production | Juan Miguel Lamet | Executive Producer |
| Production | Antonio Cuevas | Executive Producer |
| Sound | Antonio Pérez Olea | Music |
| Camera | Francisco Fraile | Director of Photography |
| Editing | Mercedes Alonso | Editor |
| Art | Pablo Gago | Set Decoration |
| Costume & Make-Up | Dolores Del Pino | Hairstylist |
| Costume & Make-Up | Paloma Fernández Olea | Makeup Artist |
| Production | Rafael Cuevas | Production Manager |
| Directing | Francisco Lara Polop | Assistant Director |
| Art | Eugenio Villar | Property Master |
| Camera | Fernando Arribas | Camera Operator |
| Camera | Manuel Martínez | Still Photographer |
| Camera | Isidro Muro | Assistant Camera |
| Costume & Make-Up | Maruja Hernáiz | Seamstress |
| Editing | María Dolores Laguna | Assistant Editor |