Leslie Scott was sent to stay with her Aunt Sarah when her parents win a contest trip to Europe. She is unhappy over her circumstances until she makes friends with Michael Burnison and Janet Linn.A mysterious note has aroused her curiosity. She is also disturbed by shuffling noises in the attic over her bedroom. Together with Janet's and Michael's help they solve the attic mystery and the meaning of the note. The villain Walter Kunkel's part in the drama becomes clearer as the story moves along.