YMMV / The Sacrifice Game

• Complete Monster: Maisie leads the Christmas murderers and Jude is her most sadistic henchman. Maisie once found a spellbook as a student at Blackvale's School for Girls to summon the demon Ciroc, and assembled a group of killers, including Jude, who go on to massacre families as a blood sacrifice. Jude himself performs most of the murders and believes himself an incarnation of Ciroc due to the bloodshed he's caused. The two infiltrate Blackvale, killing and torturing any in their way before attempting their ritual to gain ultimate power.
• Magnificent Bastard: "Clara", a seemingly-innocent girl, is implied to be the demon Ciroc, trapped in the halls of Blackvale's School for Girls. Desiring freedom, Clara tricked Maisie into finding the dark spellbook to send her on a murder spree before luring her back to Blackvale. Clara then ensures she gains the necessary sacrifices before she reveals herself and entraps the group to force them into death or suicide for the final components of the unbinding ritual and also subtly trying to ensure her only friend Samantha's survival.