Fragment of Fear is a Richard Sarafian film from 1970 starring David Hemmings and based on a novel by ex-spy John Bingham (who was apparently the real life inspiration for George Smiley in the John le Carre novels - yes I spent some time on Wikipedia this morning). The film is kind of like Blow Up but not boring and with a proper story. Hemmings plays Tim Brett, a former heroin addict who is on holiday enjoying the spoils of the novel he wrote about his addiction when his elderly aunt dies in mysterious circumstances. When he finds a clue linking his aunt to a mysterious organisation Tim decides to investigate her death only to be confronted with a series of increasingly bizarre threats. It's a film that's really difficult to discuss without giving away the ending so I can't go into too much detail, but the "thing" that happens to Tim is one of the most authentic and interesting depictions of that "thing" that I've ever seen on film. The story starts small and gradually builds and it's this subtlety and the small scale of the production that makes it all work. This is a thriller set primarily in small London flats and smaller London offices. There's a normality and a familiarity to it all that gives everything that happens an added layer of realism. I thought it was really fantastic and was surprised to learn that it wasn't particularly well regarded critically or even by the people working on it. But then again I never really liked Blow Up all that much so what do I know? I think Fragment of Fear holds up and is definitely worth checking out.