In Spain of 1972 a student couple decides to test the marriage before marrying in reality in order to prevent a irremediable failure. But this was like a revolution for the catholic society of this time.
| Directing | Pedro Masó | Director |
| Writing | Pedro Masó | Writer |
| Writing | Víctor Ruiz Iriarte | Writer |
| Writing | Antonio Vich | Writer |
| Sound | Augusto Algueró | Original Music Composer |
| Crew | Juan Mariné | Cinematography |