This Christmas is extra special for girl detective Judy Bolton. She is newly engaged to lawyer Peter Dobbs and wants the perfect present for him. However, finding it leads her to a new mystery. Who is the woman who eavesdropped when Judy placed her order at Franklin Stationery on Judy Lane? This mysterious person seems to be aound every time Judy checks to see if Peter's present has arrived. Is she spying on Judy or simply Christmas shopping? A threatening phone call and broken windows on Judy Lane convince Judy and her friends that the danger is real and not imagined.