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.
Post Office Box 1001 (1950) is currently not available on any services.
Conrado San Martín , Elena Espejo , Tomás Blanco , Manuel de Juan , Carlos Muñoz Arosa , Guillermo Marín
Julio Salvador
Emisora Films
