A group of musicians try to establish a pacifist Latin American philharmonic orchestra. They must face the efforts of an American spy to ruin the project.
| Actor | Role |
|---|---|
 Mapy CortésNot listed | Not listed |
 Luis SalazarNot listed | Not listed |
| HHéctor MonteverdeNot listed | Not listed |
| TTomás HenríquezNot listed | Not listed |
 Fernando CortésNot listed | Not listed |
| LLinda OlivierNot listed | Not listed |
| RRené de PallásNot listed | Not listed |
| LLucila HerreraNot listed | Not listed |
| PPura VargasNot listed | Not listed |