Fatal Witness is a 1945 American murder mystery directed by Lesley Selander. The film was written by Jerry Sackheim and is based on a story by Rupert Croft-Cooke. Wealthy Lady Ferguson (Barbara Everest) is discovered dead and suspicions turn to John Bedford (George Leigh), her nephew. Scotland Yard is on the case and Inspector Trent (Richard Fraser) begins an investigation. Trent quickly discovers significant evidence implicating John. Witnesses saw John arguing with Lady Ferguson on the night of her murder, apparently over the terms of her will. Also, rumors abound that John was caught stealing from his aunt. However, there is one very large problem: John spent the night of the murder in jail. Yet all the evidence points to John. A seemingly irreconcilable contradiction. Soon another murder is committed and the investigation takes on a new urgency. Inspector Trent follows the evidence through a maze of twists and turns until the final climatic surprise.