The haunting of Grey Cliffs (2000)

Edward's proposal was shocking: he would marry Hester and provide for her if she would care for his troubled son. Despite her misgivings, Hester agreed -- for something in Edward's dark, anguished eyes touched her soul. But upon her arrival in Cornwall, Hester feared she had made a terrible mistake. Not only was the castle filled with eccentric relatives -- including a cousin who claimed to be able to contact spirits -- but Edward's father had died under questionable circumstances, and a killer might still lurk within the stone walls.