Art of the Devil 3 (2008)

Years after teacher Panor's affair with student Ta's father led to the death of his mother, Daun, other family members use black magician Dis to shift Daun's soul into Panor's body. Things go wrong, and soon bloody havoc visits the family. Meanwhile, Dis pursues Panor's three-eyed devil, wanting to possess its powers himself in this gore-filled spine-chiller.