Post Office Box 1001
Barcelona, Spain. A young man is murdered in the middle of the street in front of the police headquarters. Miguel and Marcial, two agents of the Criminal Brigade in charge of the investigation, find in the victim's room a newspaper where a cryptic classified ad appears.
- Year: 1950
- Country: Spain
- Genre: Drama, Thriller
- Studio: Emisora Films
- Keyword: barcelona, spain, co-workers relationship, semi-documentary, amusement park, murder investigation
- Director: Julio Salvador
- Cast: Conrado San Martín, Elena Espejo, Tomás Blanco, Manuel de Juan, Luis Pérez de León, Carlos Muñoz Arosa