Helen Vardon narrates her own story and one in which Dr. Thorndyke barely features until the final chapters. Helen Vardon contracts to a marriage without full knowledge of the circumstances regarding her father's financial status. This leads to a dastardly trail of intrigue and deception and ends in murder. Dr. Thorndyke appears at the eleventh hour but does he save the day? Dr. Thornedyke is left to piece together the clues in this enticing mystery. This novel is a departure from the previous Dr. Thornedyke mysteries in narrator choice, form, and eventual resolution, with much less of the medical and scientific reasoning of prior volumes.