The Ghoul (1975 film)

The Ghoul is a 1975 British Tyburn Film Productions horror film starring Peter Cushing, Veronica Carlson, John Hurt and Alexandra Bastedo. In the United States, the film was released as Night Of The Ghoul and The Thing In The Attic.

Meanwhile, Dr. Lawrence tells Daphne about a trip his family took to India his experiences with certain cults there so horrified him that he renounced religion in general. This decision was heavily influenced by the fate of his wife and son, who were converted to a new faith by a local nobleman. The former was afterwards so horrified by the things she had done that she committed suicide. Still waiting for Billy, Daphne falls asleep in a guest room. Seeing this, the doctors Indian housekeeper, Ayah, goes to the houses attic and lets out a bloated, bloodstained man in a priests mantle. He kills Daphne with a sacrificial knife, and Ayah ritually cooks the girls flesh for him to eat and burns the girls clothes.The first couples friends, Geoffrey and Angela, learn of Billys death from the police and set out on a private mission to find Daphne. They too wreck their car in the fog and are separated in the search for help. The local police refuse to search the marshland as it is too dangerous. Angela locates the Lawrence estate first, and is abducted by Tom, who obviously hopes to rape her. When Dr. Lawrence discovers her presence, he reluctantly decides to offer her as another sacrifice to the ghoul in his attic. She is saved from molestation when Tom is sent out to get rid of Geoffrey, who also found the house and was convinced by Dr. Lawrence that Angela and Daphne were both conveyed safely back to town. ........

Source: Wikipedia