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.
Frank Hawkes
Leo Bain
Byron "Preacher" Sutcliff
Dan Potter
Ronald "Fatty" Elster
Nell Potter
Toni Potter
Tom Smith / Skaggs
Lyla Potter
Ray Curtis
Detective Burnett
Bunky