Two journalists, Carlos and Lola, investigate the murder of a young woman whose body appeared with her heart torn out, in what seems to be a human sacrifice. The investigation leads the reporters to a museum, whose director is the famous Doctor Gallardo.
| Directing | Chano Urueta | Director |
| Writing | Chano Urueta | Screenplay |
| Writing | Salvador Novo | Writer |
| Writing | José Benavides hijo | Writer |
| Writing | Francisco Elías | Writer |
| Production | Felipe Mier | Producer |
| Production | Salvador Novo | Associate Producer |
| Sound | Silvestre Revueltas | Original Music Composer |
| Camera | Víctor Herrera | Director of Photography |
| Editing | Joseph Noriega | Editor |
| Art | José Rodríguez Granada | Production Design |
| Production | Ricardo Beltri | Production Manager |
| Art | Salvador Novo | Art Direction |
| Sound | José B. Carles | Sound |
