A quartet of murderous psychopaths break out of a mental hospital during a power blackout and lay siege to their doctor's house.
Starring
Jack Palance
Frank Hawkes
Donald Pleasence
Leo Bain
Martin Landau
Byron "Preacher" Sutcliff
Dwight Schultz
Dan Potter
Erland van Lidth
Ronald "Fatty" Elster
Deborah Hedwall
Nell Potter
👤
Lee Taylor-Allan
Toni Potter
Phillip Clark
Tom Smith / Skaggs
👤
Elizabeth Ward
Lyla Potter
Brent Jennings
Ray Curtis
👤
Gordon Watkins
Detective Burnett
Carol Levy
Bunky
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