The Witchmaker (1969)

A low-budget Southern gothic horror film. A team of paranormal investigators travels deep into the Louisiana bayou to study reports of witchcraft. They discover that a coven of witches is active in the swamp, led by a sinister warlock who seeks to claim new victims for his dark rites. As the investigators confront the occult forces, skepticism gives way to terror in a story mixing witchcraft, possession, and exploitation-style scares.