Sister Marina, a very unorthodox nun, is sent during the summer of 1994 to El Parral, a boarding school for boys threatened to be closed soon. Even though the kids welcome Marina with all kinds of pranks, they will, little by little, become something very close to the family they never had.
| Directing | Roberto Bueso | Director |
| Crew | Roberto Bueso | Script |
| Crew | Oscar Díaz | Script |
| Camera | Victor Entrecanales | Director of Photography |
| Sound | Vicente Ortiz Gimeno | Music |
| Production | Fernando Bovaira | Producer |
| Production | Simón de Santiago | Producer |
| Production | Urko Errazquin | Producer |
| Production | Helen Martí Donoghue | Producer |
| Production | Isabel Salanueva | Executive Producer |
| Production | Guillem Vidal-Folch | Producer |
| Editing | Jaime Colis | Editor |
| Sound | Francisco Lorenzo Alonso | Orchestrator |
| Sound | Maurizio Armato | Sound Re-Recording Mixer |
| Crew | Alex Martínez Roig | Thanks |
