In 1905, in Sussex, England, the young boy David loses his twin sister while playing with her nearby a lake. The girl falls and drowns in the lake, and David feels guilty for her death. The grieving family returns to USA, and twenty-three years later, David Ash comes back to England, to be the professor of psychology in the University of Camberley. The skeptical David is specialized in psychic phenomena and exposition of false mediums and frauds, and wrote a successful book about this subject. After a countless number of calls from an elder lady called Miss Webb claiming to be haunted by ghosts, David is informed that the lady lives in Edbrook, and he decides to accept her invitation to visit her. When he arrives in Edbrook's train station, the beautiful young woman Christina Mariell is waiting for him. She drives him to her remote mansion, where she lives with her two brothers and their former nanny, Miss Webb. After being introduced to the family, David finds the behavior of Miss Webb very weird and disturbed, but decides to investigate the existence of any psychic phenomena in the place. Meanwhile, Christina and him fall in love for each other. Their romance and his investigation come to surprising revelations.

Hilary Mason replaced Jean Anderson.

Prof. David Ash:
Miss Webb, I have been to hundreds of houses, countless seances, and I have never yet seen something that can't be explained in rational terms. The people I've met all have one thing in common; pain.


Nanny Tess Webb:
I thought you came to help me.


Prof. David Ash:
Miss Webb, I am trying to help you.


Nanny Tess Webb:
You mean to tell me that you see nothing?


Prof. David Ash:
I see nothing. But the point is, you do. And if you just give me a few simple details, I intend to prove to you that there's nothing in Edbrook House to be afraid of.


Nanny Tess Webb:
There are spirits in this house. I know you see Arrggghhhh

[clutches throat as though strangled by invisible hands]