Porto Alegre anxiously awaits the passage of the German airship towards Montevideo. Júlio, an accountant, finds a way not to take his wife Mariana, a seamstress, who stays at home, sad. But while Júlio and his lover Leda see very little of Zeppelin, Mariana, at home, indulges in an overwhelming passion.

An 18-year-old boy is forced to attend a course to receive his father's inheritance. In the first lesson, a kiss. In the second, a woman's body. In the third, the primer on the sexual act. Other lessons will come, and the boy will still have to face the final exam.

A wedding in the interior of Rio Grande, 1930. Among the guests, a lover of the bride, accompanied by his pregnant wife. Amid the joy of the party, the lovers decide to run away. So, the groom gathers a group of friends and sets out to seek revenge.