This has B film written all over it. The dull and incredulous storyline, together with a lack lustre cast of one dimensional characters, made me lose interest fairly quickly. I suppose the film makers hoped that by weaving a story around an American test pilot, it would give the film an excitement and transatlantic appeal, but sadly the hero, played by Paul Carpenter is uninspiring, and merely plods his way through the film, failing to convince the audience that he's having some sort of mental breakdown. The scene where he wanders around London in a daze is tedious in the extreme! The only actor who stood out was the wonderfully urbane and cultured actor, Roland Culver, playing the dubious and unscrupulous psychiatrist. Below average film, strictly to be seen on a very rainy day!