The Undead (1957)

In 'The Undead,' a woman named Diana Lovejoy finds herself transported back to medieval times where she is accused of witchcraft. With the help of a psychic investigator, Diana delves into her past lives and uncovers a dark secret involving a Faustian bargain and a coven of witches. As she fights to break free from her past, Diana becomes entangled in a web of black magic, manipulation, and the supernatural.