Set against the backdrop of the Prague Spring period of Czechoslovak history, the novel explores the philosophical concept of Nietzsche's eternal return through the intertwined lives of four characters: a womanizing surgeon, his intellectual wife, his naïve mistress, and her stoic lover. The narrative delves into their personal struggles with lightness and heaviness, freedom and fate, love and betrayal, and the complexities of human relationships, all while offering a profound meditation on the nature of existence and the paradoxes of life.

Set in the 1920s in the Brazilian town of Ilhéus, the novel tells the story of a beautiful and charismatic migrant worker, Gabriela, who becomes a cook in the home of a wealthy bar owner. As the town, historically dominated by a few wealthy cacao planters, undergoes economic and social changes, Gabriela and her employer fall in love. Their relationship, however, is challenged by their different social statuses, the town's traditional values, and the employer's political ambitions. The story is a vivid portrayal of Brazilian culture, exploring themes of race, gender, class, and tradition versus progress.