When a romantic orchestra won't change their boring style into something more modern to get gigs, their girlfriends split and form a rock and roll orchestra that quickly becomes talk of the town. The guys are furious since they are relegated to their opening act as a comical number, but when the League of Virtue protests against the new satanic music, the old-fashioned music seems to win the day.
| Directing | José Díaz Morales | Director |
| Writing | José Díaz Morales | Writer |
| Writing | José Carbó | Writer |
| Writing | José Luis Galiana | Writer |
| Camera | Ezequiel Carrasco | Director of Photography |
| Sound | Antonio Díaz Conde | Music |
| Production | Alberto López | Producer |
| Editing | José W. Bustos | Editor |
