Shriek is a criminally insane supervillainess and an enemy of Spider-Man . Shriek was incarcerated in the criminal mental hospital, Ravencroft, when Carnage caused a mass breakout. Upon seeing their mutual psychopathic sadism, the two "fell in love" and teamed up, and went on a killing spree. They also teamed up with three other homicidal villains, Demogoblin, Carrion, and Doppleganger, forming a "family". They were, however, stopped by Spider-Man, Venom, and Black Cat. Shriek has since tried escaping Ravencroft several times, each time battling Spider-Man.