An atmosphere of mystery surrounds the death of Juan Durán. Paula, his wife, who has traveled to Rio de Janeiro to meet her husband, receives the news of his death. Since then, she also feels the impression of being watched and persecuted.
| Directing | Antonio Román | Director |
| Writing | Jaime de Armiñán | Writer |
| Writing | Vicente Coello | Writer |
| Writing | José María Forqué | Writer |
| Sound | Adolfo Waitzman | Music |
| Camera | Alejandro Ulloa | Director of Photography |