A young man, just 22 years old, adopts a childlike demeanor to get close to an appealing library employee in London, portrayed by Hayley Mills. His goal involves gaining access to her mother’s boarding house, and predictably, things quickly spiral out of control. “Twisted Nerve,” released in 1968, shows the influence of Hitchcock's "Psycho"—even utilizing Bernard Herrmann’s music—but it feels more grounded in drama than sensationalism. Mills, who was 21 during filming, is charming as always, though she could have used a better diet. Billie Whitelaw delivers a quietly seductive performance as the mother. The film opens with an odd narration that insists there's no proven link between Down Syndrome and criminal or psychotic tendencies. This feels quite out of place given that the central character isn’t actually affected by Down Syndrome. Furthermore, even if someone connected to a person with Down Syndrome were to experience psychological problems and commit offenses, what would that suggest? It seems illogical to assume that all relatives of individuals with Down Syndrome would share those characteristics. A noteworthy detail is that Quentin Tarantino incorporated the whistling melody from Herrmann’s score into “Kill Bill,” using it when Elle Driver pretends to be a nurse, and also in "Death Proof" as Abernathy Ross’ ringtone. The movie has a running time of 1 hour and 58 minutes and was filmed in Twickenham, located southwest of London—specifically at the Harper house, which belonged to Hayley Mills' family. Studio work took place in Shepperton, approximately five miles further southwest. GRADE: B-

Source on TMDB