Companhia Cinematográfica de Portugal

Diogo Alves is a Spanish fugitive that comes to the Portuguese capital terrorizing the inhabitants by his cut-throat methods against rich and poor people alike. He attacks the women launderers on the Lisbon Aqueduct and throws the bodies over the high wall, and assaults homes with his large band of criminals. Eventually arrested, he, his female companion and his henchmen are condemned to death by the court.

Caleidoscope of documentary-like scenes and re-enacted episodes of a day in the life of a large port town – Lisbon, from the old district around Saint George's Castle down to the docks and the 'Sagres' on the Tagus river, to the new commercial districts.