On a sweltering holiday weekend, a power failure leaves wealthy widow Cornelia Hilyard (Olivia de Havilland) trapped in her large estate's cage-like elevator. While struggling to cope with the stifling heat and her increasing claustrophobia, Cornelia's problems become much worse when a group of sadistic vandals invades her home. Nail-biting thriller co-stars James Caan (in his first film role), Jennifer Billingsley, Ann Sothern, Jeff Corey. 94 min. Widescreen; Soundtrack: English DTS HD mono Master Audio; Subtitles: English (SDH); audio commentary; interview; theatrical trailer.