Straight on Till Morning (1972)

Brenda (Rita Tushingham), a working-class girl from Liverpool, breaks her mother's heart by moving to London to find a man to father her baby. She's naïve. out of her depth and eager to please; in a contemporary city setting that's a combination that's easy for socialites and psychopaths to exploit.
Rita is perfectly believable as a sheltered woman wholly unprepared for the dangers that await her - one of which is blonde-haired Peter (Shane Briant), a charming loner with a lot of free time and some emotional issues.
Artistically it has Nicolas Roeg-esque levels of cross-cutting, both visual and audio, that serve to disorientate, with an occasional sinister edge.

3½ fairy stories out of 5