A prehistoric creature, resembling the "Creature from the Black Lagoon", terrorizes a small coastal town. The town's lighthouse keeper, a widow who has drifted apart from the community, has been secretly feeding the monster for years, oblivious to its insatiable hunger for blood. As the creature's appetite grows beyond the keeper's ability to sustain it, decapitated bodies begin to surface.

The Monster of Piedras Blancas
A monstrous prehistoric sea creature, similar to the "Creature from the Black Lagoon," terrorizes a tranquil coastal town, while a reclusive lighthouse keeper, shunned by the community, has been secretly feeding the beast for years.