Witchcraft XI: Sisters in Blood is a 2000 American horror film directed by Ron Ford and starring Miranda O'dell, Lauren Ian Richards, and James Servais. The eleventh film in the Witchcraft film franchise, it was produced by Vista Street Entertainment. The film is followed by Witchcraft XII: In the Lair of the Serpent.

Plot

As an exercise in their acting class , Catholic college students Colleen (Miranda Odell), Keri (Kathleen St. Lawrence) and Maria (Lauren Ian Richard) agree to complete a ritual they think fake to conjure up a demon. The idea is to “get into character” as a method acting exercise for the school production of Macbeth. Unknown to Colleen and Maria, the director, Professor Ramsden (Don Donason) and Keri are actually Satanist determined to resurrect the spirits of three dead witches, the Sinobia sisters, through this ritual and place the spirits into the young coed's bodies. Maria is the first to be possessed, and then begins a murder spree. She is looking for the stone key which the sisters had, 300 years ago, built as portal for the demon Abaddon to enter the world. Abadon is Satan's general.