This trilogy involves strange occurrences revolving around species and mutations, highlighting the unexpected consequences of meddling with the natural order. From experiments bringing changes to a woman's body, a virus turning townspeople into zombies, to a hybrid alien-human turning into a deadly predator, the films emphasize the genres of science fiction and horror. The series explores scientific experimentation's thrilling and frightening outcomes, urging viewers to ponder ethical boundaries and the potential hazards of unchecked innovation.