 Contractor George Andrews meets with political strongman Wilfred Borden, an amateur photographer, about resolving the arbitrary inspection problems on the job. As he leaves the estate, Andrews sideswipes a car, throwing a young woman into the driveway. The woman identifies herself as Beatrice Cornell and refuses medical aid, asking only for a ride home. Andrews consults Perry Mason, who finds that the accident victim was not who she said. Borden is killed, and Mason must search for a model who might have been in the house that evening. Lt. Tragg finds the murder weapon, a Colt .38 automatic, in Andrews  car and arrests him.