From the back of the book:
MIDNIGHT It's a quiet night in downtown Detroit as the first in a series of strange murders takes place. Bureau 13 is notified and quickly arrives. They think they know the answer as they see the holes in the neck, but it is more, much more than a vampire. Hellsnight has begun.
Hellsnight is the first Stalking the Night Fantastic Casebook filled with adventures for hunters of the paraphenomenal. Seven adventures and a new information for Agents of Bureau 13 provide many hours of suspense as they stalk the Evil of the 1980's.