Lady at Midnight is a 1948 mystery movie directed by Sam Newfield. Peter Wiggins (Richard Denning) and Ellen Wiggins (Frances Rafferty) have been fostering a young girl and decide the time is right to adopt her. Peter is a local radio anchor who makes a decent living and though the little family is not rich, they are happy together. After filing for adoption a mysterious and somewhat frightening stranger contacts Peter and Ellen claiming to be a relative of their foster daughter. Peter is skeptical, and hires private detective Al Garrity (Ralph Dunn) to investigate the stranger's claims. Al Garrity discovers the child is heir to a sizable inheritance which would be controlled by the Wiggins should they adopt her. The stranger's claims and the Wiggins' subsequent investigation lead to murder. Now it isn't just about the money or who gets the girl, it's also about the murder of a human being.