Step inside a vacation house of horror in this terrifying thriller that "does for summer homes what Jaws did for a dip in the surf" (The New York Times)! Starring Karen Black, Oliver Reed, Burgess Meredith and Bette Davis, this riveting haunted-house chiller delivers "hidden terrors [that] mount creepily as the film builds to a climax of pulverizing fright" (Rex Reed)! Marian (Black) and Ben (Reed) find it hard to believe that for only $900 they've rented a sprawling country mansion for the entire summer. But as they settle into their isolated estate with their son and Ben's aunt (Davis), they find themselves surrounded by a living presence - an evil, hypnotic, occult force - that feeds on torture, fear... and murder.