Henry Kendall is chemist "John Gray" who discovers a mysterious camera in the back of his car. When he develops the film, he finds a photo showing a gruesome murder scene alongside those of a woman whom he determines to trace. What ensues now is a romantic, gently comedic, thriller with a couple of decent performances including an engaging few coroners court scenes with the accused John Mills and Felix Aylmer (the coroner). It also features (fleetingly) Ida Lupino as Mills' well meaning wife. Kendall made his name on the stage, and his performance here is a bit over-egged; indeed it takes a…