Saturno: La Noche de la Bestia (1970)

A man, alone in an isolated country house surrounded by woods, has been feeling increasingly restless for days. Strange noises coming from outside, such as creaking, rustling or unexplained footsteps, have kept him awake at night. Exhausted by anxiety, he decides that he can no longer live with this doubt. One night he prepares to face whatever is lurking outside his house.