When the lights go out, the terror begins.

A quartet of murderous psychopaths break out of a mental hospital during a power blackout and lay siege to their doctor's house.

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Main Cast: Jack Palance, Donald Pleasence, Martin Landau, Dwight Schultz, Erland van Lidth, Deborah Hedwall, Lee Taylor-Allan, Phillip Clark, Elizabeth Ward, Brent Jennings

Director: Jack Sholder

Writers: Robert Shaye, Michael Harrpster, Jack Sholder

Editor: Arline Garson

Cinematographer: Joseph Mangine

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