Grace's friends are worried. Ever since she moved in with her new boyfriend| John| she's been behaving strangely. She looks pale| thin... ill. Is she on drugs?Fearing the worst| her friends decide to stage an intervention at the couple's isolated house. On arriving| they find the pale| sickly Grace being tended to by John|who turns out to be an authority on the occult. Grace| it seems| is not a drug addict after all. Her condition is the result of something horrible that was done toher during the brief time she was a member of an obscure cult headed by a mysterious man named Toth. The friends learn that John rescued Grace from the cult but thatToth is intent on getting her back and appears ready to mount an attack on the house that very night| using all the supernatural powers at his disposal. Even afterthey are warned by Toth to abandon Grace and John and flee the house before sundown| the friends| too wrapped up in their own trivial problems to see the dangersgrowing around ...