Do%C3%B1a Lupe

Doa Lupe is a 1985 short horror film written and directed by Guillermo del Toro. It is del Toros ninth short film, though the first eight remain unreleased. Del Toro filmed Doa Lupe atyears of age reviewers have noted that the film feels like the work of an amateur artist getting to grips with his craft.

Policemen Bienvenido and Chato rent rooms in a house owned by Doa Lupe, an elderly woman in financial trouble. Doa Lupe mistrusts the men, but allows them to stay, as she needs the money. When they change the locks and begin smuggling suspicious materials into the house, Doa Lupe decides to take drastic measures.

Source: Wikipedia