The protagonist, whose life is shattered after being accused of a brutal murder she doesn't remember, possesses the base of American serial killer Henry Lee Lucas.
At its core, Satanophany explores a terrifying phenomenon known as . This illness transforms ordinary young women into ruthless killers by giving them a "Base"—a secondary personality modeled after history's most notorious serial killers.
The continues its descent into chaos as the series reaches the intensity of Chapter 291 . Since its debut in 2017, Yoshinobu Yamada’s dark seinen thriller has captivated audiences with its blend of psychological horror, visceral action, and the mystery of the "Medusa Syndrome".