Years ago, Alden Leeds struck it rich when he discovered a vein of gold. Now, aging and single, he finds himself surrounded by family waiting patiently to inherit his fortune. When he announces his engagement to a much younger woman, it sends that family into a panic, fearing that it might threaten their future gains. They have him admitted into a sanitarium, claiming incompetence--and that's when lawyering super-sleuth Perry Mason gets involved,...