Estrada da Vida (1968)

The conventional love triangle—the wife, the man (coffee exporter), the other woman (his secretary). Faced with the discovery of infidelity, a frivolous woman is forced to give way to her rival, the mother of her husband's child. She therefore decides to leave for the metropolis and start a new life, against all odds... Fate will bring the couple back together, in dramatic circumstances, with a glimmer of happiness.