Costa is travelling from Africa to London, and wishes very much to his nephew Amadeu, and see by himself how well he has been invested large sums of money he is been sending him. Amadeu 'borrows' for 24 hours a wife, a villa, a car, and a servant - for he has been lies to his uncle all the time. All goes well. But, Costa decides to prolong his stay for two weeks...
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.
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.
