Vasco is a medical student in Lisbon, supported by his rich aunts, whom he had falsely told he had already graduated. In fact, he devotes himself to a bohemian life, preferring the popular fairs and pretty women, especially Alice, a seamstress from the Castelinhos quarter, which rather upsets her ambitious father, tailor Caetano, who is familiar with Vasco's debts. After failing yet another final exam, he is surprised by his aunts' announcement that they will visit him in Lisbon to see his practice.

Gracinda, a young laundry washer, lives with her godfather, "Uncle" Jacinto, and together they run a family business, doing the laundry for residents of Lisbon in their small village in the outskirts of that city (Canecas). Unfortunately, the business is not going very well, but that changes when Gracinda decides to go to the city to try to convince Chico, "Uncle" Jacinto's son, with whom she is in love, to return to the village and give new life to the business. The village is preparing for the annual festivities and a dispute erupts between "Uncle" Jacinto and his business rival , the widow Quiteria, when each of them invites different bands to play at the same time during the party and dances

Aninhas (Aida Lupo), a paralyzed girl, asks for a miracle from the saint of her devotion, Our Lady of Lourdes, at the chapel of Penha (Guimarães), but her prayer is not heard - She turns her devotion to the Blessed Virgin directly, and joins the multitude that goes on a pilgrimage to the village where, ten years before, the Virgin Mary is said to have appeared to three child sheepherders.

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.