Desc: Apartado de correos 1001: Directed by Julio Salvador. With Conrado San Martín, Elena Espejo, Tomás Blanco, Manuel de Juan. Barcelona, 1950. A man is killed in front of a Police station. The case is given to two agents, a skilled veteran and an eager young one, who team to solve it while bit by bit their efforts unveil the truth. We follow them in their progress with ups and downs, to a thrilling climax in a local amusement park. Filmed on location, so many views of Barcelona at the time.