Carlos goes to visit his girlfriend Juana at the asylum where she works. Once there, the director introduces him to his niece, who is obsessed with playing the harp, and to a nurse who repeats word for word what Carlos says.
| Directing | Fernando Fernán Gómez | Director |
| Directing | Luis María Delgado | Director |
| Camera | Cecilio Paniagua | Director of Photography |
| Editing | Félix Suárez Inclán | Editor |
| Production | Ramón Plana | Production Manager |
| Directing | José María Ochoa | Assistant Director |
| Sound | Felipe Sáez Barea | Sound |
| Camera | Mario Pacheco | Camera Operator |
| Camera | Rafael Pacheco | Still Photographer |
| Production | Carlos Boué | Production Assistant |
| Camera | Sebastián Perera | Director of Photography |
| Sound | Manuel Parada | Original Music Composer |
| Writing | Aleksandr Kuprin | Short Story |
| Writing | Edgar Allan Poe | Short Story |
| Writing | Leonid Andreyev | Short Story |
| Writing | Francisco Tomás Comes | Screenplay |
| Writing | Fernando Fernán Gómez | Screenplay |
| Directing | Carmen Salas | Script Supervisor |
| Costume & Make-Up | Carlos Nin | Makeup Designer |
| Art | Eduardo Torre de la Fuente | Production Design |
| Sound | Antonio Fernández Roces | Sound |