Max Marsh, a major film producer, comes to Buenos Aires, Argentina in South America. He plans to make his next epic film there with his famous star, Terri London. They arrive to the press and murder. Terri finds Horst Krein and begins to see him... more and more... until Angelica cannot stay anymore. Angelica returns to her cult and is told to murder Max Marsh during Carnivale. She dresses herself up as Terri and lures Max away to his death. Terri is distraught and goes to recover at home with Horst. Horst's father arrives and very much approves of the situation. Terri stays on and Horst is bound to her by her beauty and the baby that is coming. Angelica returns to her cult filled with vengeance. Fresh blood is needed to appease the leader and his cause. The blood of an unborn child. Until that time of SLAUGHTER, days must be occupied for all. The girls of Satan must live, and to them, life is one of challenges and violence. They live and love, torture and kill. Horst must also play, and his wife, who is heavy with child, is no longer appealing to him. During the company of others, Terri becomes withdrawn and finds that Horst's father is willing to offer understanding and companionship. But the time of Satan draws near, and while forces are gathered, the prey sleeps. And they sleep forever. For the SLAUGHTER has ended.
—pressbook synopsis