When dynamite detonates in a remote swamp, it awakens an ancient creature—a gill-breathing predator from prehistory. Now loose and ravenous, the monster hunts with a singular biological imperative: it requires the blood of women to sustain itself. Directed by Don Keeslar and written by Carl Kitt, this 1979 creature feature stars Gloria DeHaven, Aldo Ray, and Marshall Thompson in a battle against nature's forgotten terror.