Margarita, the nun of a cloistered convent in charge of handling the lathe, this is a rotating mechanism provided with a small window through which she delivered and received things from the outside without direct visual contact, she is seduced by a Don Juan and induced to escape with him .
| Writing | Alejandro Casona | Writer |
| Art | Gori Muñoz | Art Department Assistant |
| Camera | Bob Roberts | Director of Photography |
| Sound | Alejandro Gutiérrez del Barrio | Music |
| Directing | Fernando Ayala | Assistant Director |
| Camera | Carmelo Lobótrico | Camera Car |
| Camera | Ramón Ator | Camera Car |
| Sound | José Castellanos | Sound |
| Art | Ralph Pappier | Art Designer |
| Art | Américo Hoss | Art Designer |
| Directing | Francisco Múgica | Director |