In a small town an inbred-looking woman gives birth to twins. One is normal while the other has...tentacles. Is this the offspring of one of the Elder Gods or because she became pregnant from her incestuous father? Then, time skips. There are two psychic/supernatural investigators who call upon a teacher for help. He's knowledgeable. And he's also actor Dean Stockwell, who was in the original 1970 movie version of this H.P. Lovecraft story. The effects work, though they are something you'd more likely see from an 80's horror film, which was probably the intention.