I had to look Maniae up ... and it sounds about right for this perversity.

In Ancient Greek mythology, Maniae or Mania are the spirits personifying insanity, madness, and crazed frenzy. They operate closely with Lyssa, the spirit of rage and rabies, and like Lyssa, are presumed to be daughters of Nyx (Night). They are also associated with the Erinyes (also known as the Furies), the three fearsome goddesses of vengeance.