Naive secretary Janice Wainwright carries out boss Morley Thielman's orders and places a briefcase containing more than $100,000.00 in a train station locker. Then she waits for the arrival of Thielman's ex-wife but Lt. Tragg arrives instead with an arrest warrant for Janice on the charge of murdering her boss. It seems as though witness Fred Carlyle saw a woman's shapely shadow through the shades of Thielman's office window shortly before the murder occurred.Carlyle believes the silhuette belonged to Janice. Perry manages to get to the bottom of things once the courtroom proceedings begin.