As Sony expands its Spider-Man-adjacent cinematic universe, a potential plot synopsis has made its way online for the upcoming film Morbius: The Living Vampire.

Following in the footsteps of Ruben Fleischer's Venom, Morbius -- if the synopsis is legitimate -- promises a "horror action story" that is much darker than the world of Peter Parker, which Tom Holland portrays in the Marvel Cinematic Universe.

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Teased by That Hashtag Show, the synopsis sounds like a storyline plucked straight from the pages of the original Marvel Comics and Morbius' 47-year history. The site hypes the "horror action story of a scientist who, in trying to find a cure for a rare blood disease, accidentally transformed himself into a living vampire who, though disgusted by his own bloodlust, chooses to prey upon criminals he deems unworthy of life."

The writers of Netflix's rebooted Lost in Space, Matt Sazama and Burk Sharpless, were tapped to pen the script for Morbius, which still has no director attached. Sony reportedly spoke with Training Day's Antoine Fuqua about directing, and That Hashtag Show reports that Fast & Furious' F. Gary Gray has already turned down the role. Importantly though, if the report is to be believed, Morbius is still very much in development.

Having first appeared in The Amazing Spider-Man #101, Michael Morbius was the brilliant but flawed biologist who is transformed into the gothic member of Spider-Man's rogues gallery. The character became a fan-favorite in the long-running '90s cartoon Spider-Man: The Animated Series, featuring in several episodes, including his own self-titled episode, "Morbius."

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The addition of a Morbius movie to Sony's Spidey slate means the anti-hero's movie would be the third that follows a morally ambiguous lead, rather than a full-blown villain. As the trailer for Venom shows, Hardy's Eddie Brock is going up against forces of evil, while the delayed Silver & Black contains the sometimes-heroic Black Cat and Silver Sable.

Sony's Morbius: The Living Vampire hasn't been given a release date.