Maryam D'Abo,Shari Shattuck in Immortal Sins (1991)
Mike and Susan have inherited an estate in rural Spain. Of course it is haunted; by the spirit of a witch who was a victim of the medieval inquisition - who were under the control of Mike's distant ancestor. Susan learns the history of the place while Mike comes under the sway of the witch/Succubus, as had all his ancestors before him.