A neurosurgeon relates to his students in medical school a story about an affair he had with a married woman and how after the affair was over, the woman fell out a window and died. The surgeon, suspecting that she was murdered, set out to find her killer -- but, instead of turning the suspect over to the police, he planned to take his own revenge on the murderer.
You can now watch The Upturned Glass online on the following streaming providers in the United States.
| Production | James Mason | Producer |
| Directing | Lawrence Huntington | Director |
| Editing | Alan Osbiston | Editor |
| Crew | J. Arthur Rank | Presenter |
| Sound | George Burgess | Sound Supervisor |
| Writing | John Monaghan | Original Story |
| Sound | Bernard Stevens | Original Music Composer |
| Production | Fraser Foulsham | Production Manager |
| Sound | Stephen Dalby | Sound Recordist |
| Sound | Muir Mathieson | Conductor |
| Costume & Make-Up | Mattli | Costume Design |
| Production | Antony Darnborough | Production Manager |
| Art | Andrew Mazzei | Art Direction |
| Production | Sydney Box | Producer |
| Sound | John W. Mitchell | Sound Recordist |
| Camera | Cyril Stanborough | Still Photographer |
| Costume & Make-Up | Nell Taylor | Makeup Artist |
| Directing | Basil Keys | Assistant Director |
| Production | Betty E. Box | Associate Producer |
| Writing | John Monaghan | Screenplay |
| Camera | Bernard Lewis | Camera Operator |
| Writing | Pamela Mason | Screenplay |
| Camera | Reginald H. Wyer | Director of Photography |
| Editing | Jean Barker | Editorial Services |
