Blood Relations (1988)

A trip to meet her fiance's family becomes a descent into hell when Marie discovers that her future husband wants more than just a wife... Dying for a rich husband, Marie is thrilled when Thomas brings her home to his family's massive estate. But there is something wrong in the house, and as the days go by and Marie wanders the dim halls, she makes a gruesome discovery. There is a lab underground, and a body, and all that's missing is a brain...