Dementia (also known in a slightly altered version as Daughter of Horror) is an American film by John Parker, incorporating elements of the horror film, film noir and expressionist film.^[2] It was produced in 1953, but not released until 1955.^[3]

Filmed in film-noir style throughout; only the narrator speaks.

Composer George Antheil (1900-1959) scored the film.  Antheil  is most remembered for his mechanistic piano music hailed by 1920s Paris. The obsessive repetition of his Ballet Mécanique foreshadowed the entire minimalist movement. But by 1948, when he’d become the third most-played American-born composer of orchestral music, his style reflected a more emotional, more mature personality.