Home on vacation, Sally decides to take a walk down memory lane in her great-grandmother's empty, neglected house. While deciding whether, or not, to take the stairs to the second floor, she snags her sleeve on a hinge attached to a stair tread. Lifting the tread she finds, under old papers, a tin box with a rusted hasp and small padlock. Having nothing to pry it open it with she takes it back to her mother's where they open it together...