Dementia 13 (1963)

Unrated  |   |  Horror, Thriller  |  18 November 1966 (Denmark)
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Reviews: 89 user | 89 critic

When her husband John has a heart attack while out in a rowboat on the lake, Louise Haloran throws his body overboard and later tells the family that he has left on an urgent business trip.... See full summary »


(as Francis Coppola)


(as Francis Coppola) , (second unit writer)
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Director: Francis Ford Coppola
Stars: Karl Schanzer, Don Kenney, Marli Renfro


Complete credited cast:
Richard Haloran
Louise Haloran
Bart Patton ...
Billy Haloran
Mary Mitchel ...
Patrick Magee ...
Justin Caleb
Eithne Dunne ...
Lady Haloran (as Ethne Dunn)
Peter Read ...
John Haloran
Karl Schanzer ...
Ron Perry ...
Derry O'Donavan ...
Barbara Dowling ...


When her husband John has a heart attack while out in a rowboat on the lake, Louise Haloran throws his body overboard and later tells the family that he has left on an urgent business trip. Her main concern is that she can only inherit a part of the family fortune if if her husband is alive. The Halorans are a strange family, still grieving over the death of the youngest daughter Kathleen who drowned in a pond when she was just a child. They hold an annual ceremony of remembrance every year on the anniversary of her death. This year however, someone is wielding an ax intent on murder. Written by garykmcd

Plot Summary | Add Synopsis


You Must Pass the "D-13" Test To Prepare You for the Horrifying Experience of Dementia 13. If You Fail the Test...You Will Be Asked to Leave the Theater! See more »


Horror | Thriller


Unrated | See all certifications »

Parents Guide:





Release Date:

18 November 1966 (Denmark)  »

Also Known As:

Demência 13  »

Box Office


$30,000 (estimated)

Company Credits

Production Co:

Show detailed on  »

Technical Specs


Sound Mix:


| (colorized)

Aspect Ratio:

1.66 : 1
See  »

Did You Know?


This film was originally going to be titled simply "Dementia." The "13" was added because it was discovered that the title "Dementia" had already been used for a 1955 film. See more »


As Kane and Richard leave the wedding reception, she has her veil on. In the next scene as she approaches the barn, the veil has gone. See more »


Louise Haloran: It's nice to see her enjoying herself for a change. The mood around this place isn't good for her.... Especially an American girl. You can tell she's been raised on promises.
See more »


Featured in Stephen King's World of Horror (1986) See more »

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User Reviews

Forgotten classic...
23 July 2000 | by (Poland) – See all my reviews

This is the first movie that came from brilliant mind of Francis Ford Coppola.It is still very creepy and full of bizarre characters.Great,memorable music score which creates an unforgettable atmosphere of dread and fear.This gruesome psycho-thriller features one of the first decapitations in the history of this genre.Watch "Dementia 13" in the dark and feel the creeping terror.

21 of 32 people found this review helpful.  Was this review helpful to you?

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