一个小女孩和父母居住在城中村狭小的阁楼里。有一天，一个来探亲的小男孩拉小提琴的声音吸引了她的注意。从那以后，她就喜欢上了从窗口观察小男孩并欣赏他演奏的优美乐曲。贫困的生活和学习的压力让她渴望逃离，她开始幻想自己也能拥有“一把琴”。小男孩离开后，经济拮据的她决定去琴行“偷”一把琴参加比赛。然而，事情败露，小女孩被抓，随后又被母亲带回了原来的生活。这时她才发现，当一切都消失后，她依然是那个被困在阁楼里的自己，但隐隐约约地，她好像总能听到那首名为《云雀高飞》的曲子。 A little girl lives with her parents in a cramped attic in an urban village. One day, the sound of a visiting little boy playing the violin catches her attention. From then on, she falls in love with observing the boy from the window and enjoying the elegant music he plays. The poor life and the pressure of study make her eager to escape, and she begins to fantasize about having "a violin" herself. After the little boy leaves, due to her family's financial difficulties, she decides to "steal" a violin from a musical instrument store to participate in a competition. However, when the matter is exposed and the little girl is caught, she is then taken back to her original life by her mother. Only then does she realize that when everything is gone, she is still the one trapped in the attic. But vaguely, she always seems to hear the piece called "The Lark Ascending".