Joan Hayes, played by Jean Arthur, works for the successful criminal defense lawyer Mitchell, portrayed by Jack Holt, right as he’s about to win his 38th case in a row. However, after a kidnapping occurs, Mrs. Evans (Sarah Padden) arrives, and Joan, who is observant and new to her job, notices things that lead her to suspect her seemingly respectable boss isn't what he appears to be. With some incriminating informati…