John Haloran's sudden death on a rowboat with his wife Louise sparks a sinister plot, as she attempts to hide his demise and secure her inheritance. Meanwhile, the Haloran family's dark past and eerie traditions surrounding the anniversary of their deceased daughter Kathleen's drowning threaten to unravel as an axe-wielding killer targets the family.

Info about Dementia 13
Studio(s): The Filmgroup, Roger Corman Productions
Originally Released: United Kingdom, Dec 01, 1964
Production Countries: Ireland, United States
Budget: $40,000.00
Dementia 13: Where to Watch Online in United Kingdom?
At the present time, viewers have the opportunity to enjoy "Dementia 13" completely free of charge, though with occasional advertisements, on the following streaming platforms: Prime Video, Pluto TV. Additionally, viewers have the option to either rent or purchase "Dementia 13" on the following digital platforms: Amazon.