The Upturned Glass

The Upturned Glass is a 1947 British film noir psychological thriller directed by Lawrence Huntington and starring James Mason, Rosamund John and Pamela Kellino, about a leading brain surgeon who murders a woman he believes to be responsible for the death of the woman he loved.

Michael is a skilled London surgeon and brain specialist with an established Harley Street practice. He is unhappily married and separated from his wife, has no close friends, and spends most of his time working. He meets Emma Wright Rosamund John when she brings her young daughter Ann Ann Stephens, who is going blind, for a consultation. Michael performs a delicate operation to save Anns sight. During Anns treatment and recovery, Michael and Emma, whose husband is away on business travel, fall in love and have an affair, although neither is free to marry. Emma finally ends the affair and tells Michael they must never see each other again.Soon afterwards, Michael learns that Emma has died from a broken neck after falling from her bedroom window at her country home. Michael attends the inquest, at which both Ann and Kate Howard, Emmas sisterinlaw Pamela Kellino, testify. Emmas death is ruled an accident, but Michael is suspicious and conducts his own investigation. In order to gather information, he romances Kate, who proves to be a greedy, shallow woman with debt problems and a grudge against her brother and Emma because her brother had inherited most of her parents estate. Kate tells Michael that she knew Emma had a lover, but did not know who it was. ........

Source: Wikipedia