Eduardo, the son of the wealthy farmer Jerónimo de Vinhais, falls in love and departs for Lisbon with the fado singer Maria da Graça, after studying abroad, and refusing his father "too" to be a taurenic knight.
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.