Dementia 13 - 1963

Dementia 13 follows a scheming young woman who, after having inadvertently causing a heart attack, resulting in the untimely death of her husband, attempts to have herself written into her rich mother-in-law's will. She pays a surprise visit to her late husband's family castle in Ireland, but her plans are interrupted by an axe-wielding lunatic who begins to stalk and murderously hack away at members of the family.