电影《污秽的怪兽》讲述A terrifying creature, resembling a more sinister interpretation of a famous lagoon-dwelling being, descends upon a tranquil coastal town housing a lighthouse. The superstitious guardian of the lighthouse becomes increasingly troubled for the well-being of his lovely teenage daughter, prompting him to offer sustenance to the monster inhabiting a nearby cave. As lifeless bodies begin to surface on the shores, the towns inhabitants start to confront the grim reality unfolding before them.