A Faca e o Rio (1972)

Against all advice, a destitute Brazilian old man marries a nineteen-year-old girl. Because he can’t give her any children, he moves to the interior to make money, so she will at least have a good life. When he returns, he is told she has a three-year-old daughter. He buys himself a knife. Suspense movie with a combination of ethnography, adventure and dramatic action, based on a poem by the Brazilian writer Odylo Costa Filho.