Follows a struggling high school heavy metal band of outcasts who use the town's sudden interest in the occult to start a reputation as a Satanic metal band, until a strange series of events triggers a witch hunt that leads back to them.

In a dying 1950's town, a mysterious traveler propositions a young farmhand, Donnie, to help take down the town's tyrannical leader in exchange for the release of Donnie's mother from a primitive mind rehabilitation center.