LOGLINE In 1886 London, a biracial orphan whose family was murdered by a supernatural cult trains under a Vatican operative to battle the forces of darkness — unaware that the demon she hunts is also her father. SHORT DESCRIPTION A supernatural Victorian thriller in the tradition of Penny Dreadful meets Buffy the Vampire Slayer, SINTHEA follows the fierce and complicated Sinthea Crosse as she evolves from a grief-driven avenger into a reluctant warrior for good. Set across 1886–1906 London and San Francisco, the series blends martial arts, arcane magic, demonic mythology, and the grit of the Gilded Age — anchored by a heroine whose very bloodline is both her greatest weapon and the source of her darkest secret.