Back from the Dead (1957)

When a woman becomes inhabited by the spirit of her husband's late first wife, she transforms into a manipulative seductress, driven by her own desires. Her sister, husband, and the sister's new boyfriend grapple with the unsettling changes, seeking to understand the source of this malevolence and how to restore normalcy. Their quest leads them into the dark world of a devil-worshipping coven and supernatural forces, forcing them to confront not only the haunting presence but also their own relationships and loyalties.