Young Helen Vardon contracts marriage with a man many years her senior in the mistaken believe that it was the only way to prevent her father from being sent to prison. By doing so, she unleashes a chain of events that ultimately leads to suspicion falling on her in the case of her husband's death. As usual, it falls to Dr. John Thorndyke, the eminent forensic expert, to unravel the facts and find the truth behind... Helen Vardon's Confession