**_Hayley Mills in a late 60’s psychological drama-thriller_** A 22 years-old man (Hywel Bennett) cops a childlike personality to get close to a winsome library worker in London (Mills). He seeks to get his foot in the door of her mother’s boarding house. Havoc ensues. “Twisted Nerve” (1968) was influenced by Hitchcock’s “Psycho” (and even borrows Bernard Herrmann for the score), but it’s more dramatic and less over-the-top. Hayley was 21 years-old during shooting and thoroughly winsome, as usual, but she needed to eat some cheeseburgers. Meanwhile Billie Whitelaw is sultry as the mother in…