Nightwing

Youngman Duran, a deputy on a Hopi Indian reservation in New Mexico, begins to investigate a series of mysterious cattle mutilations. Abner Tasupi, an ancient and embittered medicine man who raised Youngman after his parents died, tells him he has cast a spell to end the world that night. The following morning, Youngman finds Abner's bloodless body on the floor of his shack, and nearby he discovers a dead shepherd and most of his flock. British scientist Philip Payne is certain they are the work of vampire bats infected with bubonic plague.