Batman fights alongside the vampire Dimeter to stop a horde of reanimated corpses. When Doctor Herbert Combs escapes from Arkham Asylum, he travels to New Orleans in an attempt to raise the dead. The only ones who can stop him are Dimeter – a vampire with a score to settle – and The Dark Knight. Batman must fight alongside Dimeter in an effort to stop Dr. Combs from unleashing his brand of evil voodoo upon the world.