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.

Maria Papoila, a shepherdess from Beira working in Lisbon, one day meets a rich young man, Eduardo, whom she assumes to be of her own social standing due to his uniform as a private soldier. Some time later, arrested as a suspect in a major robbery, Eduardo is abandoned by his selfish fiancée, Margarida, and it is the "soup girl" who, although despised in her dream and sacrificing her honor, appears in court as Eduardo's lover, and he is acquitted. Without asking for anything in return, Maria Papoila returns to her village.