"Seize the Night"
Batman has a run in with a strange man, Marius Dimeter, at the scene of a brutal murder. Before Batman can actually confront him about what has transpired, Marius reveals that he is a vampire and vanishes into a solid wall. Later as the Batman completes his forensic exam of the corpse and the crime scene, he determines that the murder was committed by a Werewolf. Vampires and Werewolves may be a little more than he can handle on his own, causing him to look for help with this problem. *Source: DocRx8482.