In "The Maniac Nun", Mary must confront a treacherous landscape of thugs, corrupt Church officials, and even Nazi forces to bring her sister's killer to justice for a deadly overdose, in this action-packed horror thrill ride that sees the titular nun battling to survive against overwhelming odds. With Mallory Stern leading the charge as the vengeful protagonist, the stakes are high and the violence is intense in this gripping, hard-hitting film.