On their cruise to the Bahamas, an American family hoped to spend time pleasantly: swimming, sunbathing, relaxing. Being victims of a shipwreck was clearly not in their plans. But after the yacht explodes, they end up on a deserted island. They can calmly wait for rescue—except for one trouble: they’re not alone on the island. A maniac is prowling in the jungles nearby, and nobody yet knows what he has on his mind.