

Appearances
Featured Characters:
- Spider-Man (Peter Parker) (Main story and flashback)
Supporting Characters:
- Black Cat (Felicia Hardy) (Main story and flashback)
- Debra Whitman (Main story and flashback)
- Michael Morbius (Main story and flashback)
- Dr. Curt Connors (Main story and flashback)
- Flash Thompson (Main story and flashback)
- Whistler (Abraham Whistler)
Antagonists:
Other Characters:
- Mary Jane Watson (Only in flashback)
- Green Goblin (Norman Osborn) (Only in flashback)
- Harry Osborn (Only in flashback)
- Clay Marks (First appearance) (Main story and flashback)
- Daily Bugle
- Boojums (First appearance)
- Aunt May Parker (Only in flashback) (Cameo)
- Blade (Eric Brooks) (Only in flashback)
Races and Species:
- Mutated Humans
- Humans
- Cats
- Vampires (Mentioned)
Locations:
- Earth-92131 (Reality)
- North America
- United States of America
- New York
- New York City
- Manhattan
- Osborn Manor (Only in flashback)
- George Washington Bridge (Only in flashback)
- Greenwich Village
- Empire State University (Main story and flashback)
- E.S.U. Clock Tower
- Washington Square Park
- Empire State University (Main story and flashback)
- Hardy Foundation Research Center
- Felicia Hardy's apartment
- Herbert Foundation Building (First appearance)
- Crime Central
- Whistler's lair
- Riigor & Sons Mortuary
- Landon's lair
- Jamaica Bay
- Cave
- Manhattan
- New York City
- New York
- Europe (Mentioned)
Items:
- Spider-Man's Suit and Web-Shooters (Main story and flashback)
- Black Cat's Suit and Grappling Hook (Main story and flashback)
- Bruce the Gargoyle
- Shocker's Vibro-Shock Gauntlets
- Spider-Tracer and Tracker
Vehicles:
Synopsis
Debra Whitman and a team of scientists retrieve the body of a hibernating Michael Morbius. They attempt to return the vampire to his human form, but there is a power surge and the experiment has to be held off. Before they can try again, Morbius is awoken after the Shocker and Herbert Landon try to kidnap him. It is revealed that Landon was secretly founder of the Herbert Foundation, which had funded the research that allowed them to find Morbius and attempt to cure him.
A re-awoken Morbius continues his plasma draining spree once again, but is taken by Landon and Shocker. The Kingpin and Landon attempt to discover the secret of neogenics by analyzing Morbius, but Black Cat and Spider-Man interrupt. Morbius is set free, and Black Cat prepares to destroy him using a weapon given to her by Whistler, but she cannot bring herself to do it. While Kingpin and Shocker are able to escape, Landon has his plasma drained by Morbius. Morbius then flees.