Dog Lay Afternoon (1976) on Netflix

Jeanine is a girl who has been traumatized since childhood after having inadvertently seen her mother mate with the family's Doberman dog.

The architect Paul moved for work reasons, with his wife Yvette, to a Mediterranean island inhabited by few tourists, a crippled fisherman Ugo and a young girl, Jeanine, traumatized in childhood by the sight of her mother having sex with a doberman. The young girl who ran away from home lives in the ruins of the family castle, makes a bond, even in bed, with Paul and his wife, awakening the dormant senses of the former. But the Doberman, with whom Jeanine also likes to make love, is jealous.

—Cinematografo