A widow deceives her late husband's mother and brothers into thinking he's still alive when she attends the yearly memorial to his drowned sister, hoping to secure his inheritance, but her cunning is no match for the demented, axe-wielding thing roaming the grounds of the family's Irish estate.
CountryIreland / USA
Runtime1 hour 15 minutes
Production year1963
World premiereAugust 7, 1963
Release date
September 25, 1963
Canada
18A
November 18, 1966
Denmark
October 18, 1980
Germany
December 1, 1964
Great Britain
June 17, 1964
Italy
January 5, 1967
Mexico
C
March 8, 1965
Sweden
Also known as
Dementia 13, Demencia 13, Demência 13, The Haunted and the Hunted, Demencia, Dementia, Djævelens borg, Fright Night, Nattens skräcknäste, Obłęd, Parafrosyni, Terrore alla 13ª ora, Παραφροσύνη, Безумие 13, Луди сънища, ディメンシャ13