The film narrates the story of a young rich woman who suffers from sleepwalking and a young man convinces her to marry with him.
| Directing | Benito Perojo | Director |
| Writing | Gregorio Martínez Sierra | Writer |
| Writing | Manuel M. Alba | Writer |
| Sound | Guillermo Cases | Music |
| Camera | Pablo Tabernero | Director of Photography |
| Editing | Gerardo Rinaldi | Editor |
| Art | Álvaro Durañona y Vedia | Production Design |