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Meredith Stone, a home care nurse, has been assigned the duty of looking after a wealthy invalid named Ivar Langrock. Cooped up in Langrock's stately country mansion, Meredith quickly suspects that someone sinister is lurking in the manor's dark halls only to discover that Ivar's demented and violent son has been locked away in a hidden room. Shortly thereafter, Ivar's grandson Gabriel also moves into the house and with his arrival a mysterious killer soon begins murdering members of the Langrock family along with their live-in staff.
Delusion (1981) is a horror film directed by Alan Beattie, released on January 23, 1981 with a runtime of 1h 31m. It stars Patricia Pearcy, Joseph Cotten, David Hayward and John Dukakis. Viewers rate it 4.7 out of 10 across 17 ratings.
Watch the official trailer for Delusion before you stream it.
Official trailers, teasers, clips and featurettes for Delusion.
Trailer
Trailer
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Patricia Pearcy
as Meredith Stone
Joseph Cotten
as Ivar Langrock
David Hayward
as Jeffrey Fraser
John Dukakis
as Gabriel Langrock
Leon Charles
as Phillip
Alice Nunn
as Duffy
Patrick Pankhurst
as Wilfred Langrock
Louis Basile
as Taxi Driver
Abraham Alvarez
as Alex
Simone Griffeth
as Pamela Barton
James Purcell
as Detective
Shelby Leverington
as Additional Dialogue (voice)
Directed by Alan Beattie, written by Jack Viertel and Alan Beattie, produced by Peter Shanaberg and Alan Beattie.
Average viewer score of 4.7/10 from 17 ratings.
**_People mysteriously dying at a mansion in SoCal_** When production began in 1979 the working title was “Trauma,” but after shooting completed in 1980 it was released in some places as “The House Where Evil Lives” which is superior to its most well-known title, “Delusion” (you’ll know why after seeing the film). It’s a slow grind psychological thriller and murder mystery that could also be considered a prototype…
Reviewed on December 14, 2025
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Delusion (1981) is available to stream on Night Flight Plus and Screambox Amazon Channel, and to rent or buy from Amazon Video, Apple TV Store, Google Play Movies, YouTube and Fandango At Home. Streaming availability is checked against JustWatch data and can change by region.
The main cast of Delusion (1981) includes Patricia Pearcy, Joseph Cotten, David Hayward, John Dukakis and Leon Charles. The film was directed by Alan Beattie. You can see the full cast and crew list, with character names, further up this page.
Delusion was released on January 23, 1981 and runs for 1h 31m.
Delusion (1981) holds an average rating of 4.7 out of 10 from 17 viewer votes, and is a good pick if you enjoy horror films. Read the viewer reviews on this page to decide for yourself.
Yes. The official Delusion trailer is embedded in the trailer section of this page and plays instantly, no download or sign-up required.
