The Witchmaker (1969, William O. Brown)
An academic and his entourage visit some swamp looking for trouble it turns out, see there's this local sort called Luther, who has an interesting take on hospitality, and what with one of their number being "attuned" to the otherwordly, so when the tour guide dumps them at ... a cabin in the woods, I settled back to bathe in the madness.
Of which there is little, due to the period (and budget) though it ticks all the regional US horror boxes etc.
When our titular ne'er do well hooks up with the local "herbalist" Jessie, things shift into top gear, and the mind games begin in earnest.
Unlike the lifeless clods in
Scream, this lot at least have some gumption and take the fight to the Fisher Price Lon Chaney Jr at the head of this coven.
Needs the non binary musical remake this one