Mystics in Bali (1981)

Researching a book that takes her to Bali and the black magic cult of Leák, Cathy meets an evil witch which promises to train her in the dark arts. Tricked, Cathy is turned into a Penanggalan; a flying vampire with internal organs hanging from her neck. It is now up to the local holy men who are then enforced to do battle with the forces of evil.