Watch Hell of the Screaming Undead for Free: How to Stream the Movie Online at 123Movies. . 1988: After an accident at a research lab, the population of Los Angeles is mutating into ferocious zombies eager to feed on the living. Two women take refuge in a museum but fall right into the hands of a pair of homicidal ex-convicts, who kidnap and torment the women as the undead hoard grows larger and stronger.