Four Dimensions of Greta (1972)
Hans a young German journalist arrives in London to write an article about au-pair girls, but is requested by friends to investigate the whereabouts of their teenage daughter Greta.
Directed by: Pete Walker
Starring: Tristan Rogers, Karen Boyes, Alan Curtis, Robin Askwith, Leena Skoog, John Clive
Links: IMDb, Movie posters, Movie stills