The Possession of Joel Delaney

The Possession of Joel Delaney is a 1972 American horror film directed by Waris Hussein and starring Shirley MacLaine and Perry King. It is based on the 1970 novel of the same name by Ramona Stewart.

Norah Benson and her younger brother Joel Delaney attend a party being given by Dr. Erika Lorenz. Joels girlfriend Sherry appears. Norah is extremely protective of her brother, and it is subtly implied that theirs is not an ordinary siblings relationship. The siblings have sensibly different, albeit somehow complementary mindsets in contrast to Norahs upscale, selfcompliant snobbishness, Joel is more of an adventurous, bohemian type and frequently goes on trips to exotic locations.Two days after the party, Joel fails to attend a scheduled dinner at Norahs house. When she calls him, all she hears is somebody breathing and making odd sounds into the phone. She tells her children Carrie and Peter to go ahead and eat, and heads over to her brothers seedy Spanish Harlem apartment to find out about his delay. Norah sees Joel dragged out by the police. She then learns that he tried to kill the building superintendent, Mr. Prez Aukie Herger, and is being taken to Bellevue Hospital. ........

Source: Wikipedia