In Madragoa, Zé Luís, a man of the people devoted to his work, is in love with Clara, the daughter of Santana das Carnes, his godfather and protector, who intends to marry her to D. Eusébio with the intention of financing his business. When Santana discovers the romance, he fires Zé Luís and forces him to break it off, convincing him that he owes his marriage to Margarida, a young woman of the same upbringing. Zé Luís finds employment at the docks, Margarida dies of illness, Santana goes bankrupt... Zé Luís supports him with initiative and money from his father, who has meanwhile returned from Africa, and ends up marrying Clara.
