Sheffey (1977)

The protagonist strips an unconscious alcoholic man naked and places him in a wheelbarrow, then a tub full of liquor. When the man awakes, he believes he sees demons and runs around a burning clearing in the nude, though he is only shown from the waist up and all other scenes in the sequence conveniently cover his body.

It is implied that an alcoholic mountain man beats his wife.

None.

An alcoholic man comes home drunk. The protagonist strips him naked and places him in a tub full of homemade liquor to cure him.

While the alcoholic man is unconscious in the tub, the protagonist arranges a ring of brush and wood around the tub and sets it on fire. When the man awakes, he is startled by the fire, which in a point-of-view shot looks like menacing demons. The man believes he is in hell and panics.