Dementia ★★★★

Dementia is an American black-and-white experimental horror film film produced, written, and directed by John Parker, and starring Adrienne Barrett and Bruno Ve Sota. The film, which contains no dialogue, follows a young woman's nightmarish experiences during a single night in Los Angeles's skid row. Stylistically, it incorporates elements of horror, film noir, and expressionist film.
Silence speaks even louder than the visuals, though of course, it’s not really silence, just the impression of silence. The soundtrack is a constant. Aside from a swinging number by Shorty Rogers and his band at the after-hours speakeasy, the score is supplied by George Antheil, with Marni Nixon singing along wordlessly.