Dr. Hugh Annersley, on the trail for a cure for cancer, is framed for murder by Dr. Appledan, who had accidentally killed a patient. Hugh’s sister Julia pleads with the fatally ill and suicidal Frank Sargeant to take the blame which he does only to discover that the insane Dr. Appledan had lied to him as well and he is healthy. As his execution looms Julia races to exonerate him.