 Howard Walters and his mistress, Janice Atkins, plan to rob Wade Taylor s company and fake Walters  death. Janice schemes with Roger Porter to double-cross Howard. Howard flies himself across country, calls in a bogus mayday, and crashes the plane in the mountains. He breaks his leg, however, and has to hole up for seven weeks with a prospector, Zack Davis. Carole Taylor, Wade s daughter-in-law, asks Perry Mason to find her husband Andrew. The crashed plane is found with Andrew s body, dead from a gunshot. Howard unexpectedly shows up at Janice s apartment but she thought he was dead. Janice sends Carole and Howard s wife Ruth to his motel. Howard is killed and Carole is arrested. Perry must follow the money to solve the case.