This early Larry Buchanan opus is barely feature length at 59 minutes, yet it requires considerable padding to get even that far: It opens with a nearly ten-minute pseudo-documentary prologue discussing the history of witchery (and making use of a lot of Hieronymous Bosch imagery), then follows that with travelogue footage and an explanation of how a Texas small town remained a largely German-speaking one, over a century since its creation by German settlers. (This is accompanied by shots of flaxen-haired children in traditional garb dancing, singing and skipping around, very much kitsch like the German part of Disney's "It's a Small World.") Then our handsome collegiate hero tells us in voice-over-- there's not a lot of actual dialogue in this movie--why he's driving to this outback. He's researching a thesis paper on the region, notably its own witchcraft legends and persecutions.
Other people have described the minimalist plot well enough. What should be pointed out, however, is that "The Naked Witch" is--as the title suggests--more a "nudie cutie" masquerading as a horror movie than anything else. The witch does indeed appear nude-- raised from the dead, she's nekkid, and wanders around teasingly semi-hidden by shadow, shrubbery and fences until she literally rips off a dress from the heroine. (At one point the witch actress was apparently over-exposed, because a crude black bar appears on screen to cover her naughty bits.) Later the hero spies her skinny-dipping in a pretty murky-looking river, and we see her topless for quite a stretch. She seduces him, and they have a sort of sex scene--of course not at all explicit, but it's still rare for a movie of this era to make it so clear that intercourse has occurred.
Anyway, this quirky sexploitation/horror melange--with its violence so discreet as to be almost non-existent--is amusingly odd and too brief to become boring.