Wild chupacabras, “goat suckers,” nightly foray Mexican farmlands in a furtive search for prey. None of the granjeros who operate the farms and have caught glimpses of these beasts can hardly agree on what these beasts are. Evading traps, chupacabras attack livestock, puncture their hide with long sharp fangs, drain their blood, and flee.

The superstitious believe they are demons, minions of Satan, ordered to roam the world laying waste first animals and then later, humans. More than likely, venture the scientists, the chupacabras are a new breed, the result of wild dog and coyote mating. Meanwhile, the Mexican farmers safeguard their chicken coops, pastures and stables to prevent further destruction, and they pray that Archangel Miguel will put an end to this chupacabra invasion.