The film begins with a school teacher bidding farewell to his students, who are leaving for the summer. As he is heading home he notices two of his students are hitch-hiking and picks them up. He invites them over for dinner and lodging, which they accept.. The majority of the film from this point on is set at the mansion, where the two students turn from guests to prisoners under the teacher's command.
| Directing | Eloy de la Iglesia | Director |
| Writing | Antonio Corencia | Writer |
| Camera | Antonio Cuevas | Director of Photography |
| Production | José Luis Bermúdez de Castro Acaso | Production Manager |
| Directing | Marisol García Morcillo | Script Supervisor |
| Writing | Eloy de la Iglesia | Writer |
| Writing | Juan Antonio Porto | Writer |
| Art | Eduardo Torre de la Fuente | Set Decoration |
| Costume & Make-Up | Josefa Morales | Hairstylist |
| Costume & Make-Up | Antonio Muñoz | Costume Design |
| Costume & Make-Up | Manuel Martín | Makeup Artist |
| Camera | Antonio de Benito | Still Photographer |
