It would probably have been better called “The Sorceress” or “Demon of Vengeance.” Following a terrible act, a young woman attending college in Southern California (Elizabeth Kaitan) seeks guidance from an actual witch (Lois Masten Ewing), and the individuals responsible begin to die off. "Necromancer" (1988) seems to blend elements of “I Spit on your Grave” (1978), with a feel like "Christine" (1983), plus a s…