A poor composer sells his songs to a music publisher who attributes them to his son, who sells them to a famous singer. Seeking the son, the musician's daughter will unexpectedly find a job as secretary to the singer, disguised as an unattractive and authoritative woman who effectively controls his careless lifestyle.
| Directing | Ramón Quadreny | Director |
| Writing | Aureliano Campa | Screenplay |
| Writing | Ramón Quadreny | Screenplay |
| Sound | José Ruiz de Azagra | Original Music Composer |
| Camera | Emilio Foriscot | Director of Photography |
| Production | Aureliano Campa | Producer |
| Editing | Antonio Graciani | Editor |
| Art | Enrique Bronchalo | Art Direction |
