Small-town attorney Robert Blair is wrapping up a quiet workday when he receives an urgent phone call. Marion Sharpe and her mother, who recently inherited the Franchise estate just outside of town, desperately need legal representation. Fifteen-year-old Betty Kane claims the women imprisoned her for a month, forcing her to work as their maid and beating her when she refused. But the Sharpes swear they've never even met the girl! Blair suspects there is more to Betty than meets the eye…but if Scotland Yard can't prove it, how can he? This classic mystery is a dazzling feat of ingenuity!