A young, attractive widow is protected from her vicious mother-in-law, by a male relative who practices Satanism, and lusts after the old woman's sexy adolescent granddaughter.

Dolores and her daughter Miranda live in the Cuban countryside, in a house full of hatred and superstition. They are regularly humiliated by the heads of their family: Dolores' alcoholic husband named Lucio, and his wicked old mother, Doña Zulma. When Lucio dies, Dolores and Miranda run away from Doña Zulma's house and take shelter with Lucio's brother, farmer Inocencio. He seems to be a virtuous man, who refuses Dolores' advances, but the apparently devout Inocencio has very dark secrets.