Set in rural Furnace Flats, New Mexico, the film opens with a hunched old man, Pete Jensen, slaughtering a goat and daubing its blood within a hexagon drawn on the floor of his shack.

While there, he engages in a series of demonic rituals designed to drive a wedge between pretty Nell Lucas and her fiancé, auto-mechanic David Simpson.

At this point, David's facial wound miraculously disappears and the film ends on a happy note with the townsfolk standing over Nick's body.

Praising the "earnest" cast members, including Jean Allison and Edgar Buchanan, Senn continues that even if the film is "perhaps predictable...you could do far worse than to shake hands with The Devil's Partner.

[2] Horror-film scholar Eric Michael Mazur has identified Devil's Partner as part of a scary subgenre that took advantage of the early 1960s' obsession with "hysteria over juvenile delinquency and the accessibility of strange new religions."