Lin Xia, an old object restorer, has a special pair of hands - she can awaken the memory fragments sleeping in old objects by touching them. Her "Gathering Light" studio is hidden deep in the alleys of the old city, housing old objects forgotten by time and guarding unspoken stories.
One rainy day, a mysterious visitor, Gu Yanchen, came to the door with an old-fashioned gramophone that had been damaged for half a century. He only asked Lin Xia to restore the "most precious sound" that his grandmother Shen Qingyan could not forget before she died. This gramophone not only contains the sweet agreement between Shen Qingyan and her lover Gu Jingyuan to "travel to the south of the Yangtze River after the war is over" during the war in the Republic of China, but also seals a life-and-death love that has been sealed by the years.
During the restoration process, Lin Xia accidentally discovered that the word "Qingyan" on the brass pocket watch she collected was the same name as the owner of the gramophone. As the memory fragments are pieced together, she gradually uncovers the intergenerational bond: the pocket watch is a token of love between Gu Jingyuan and Shen Qingyan, and her mother Su Wan was Shen Qingyan's close friend through life and death. Lin Xia's father was actually Gu Jingyuan's comrade who died on the battlefield. In order to protect her, her mother kept her name anonymous. The clues she left before her death point directly to this past that was buried by time.
The melody of "Tuberose" on the gramophone gradually plays, the cold light of military medals reflects the sweet fragrance of osmanthus cake, and the "ticking" sound of the brass pocket watch travels through fifty years. Lin Xia not only needs to repair old things, but also piece together the jigsaw puzzle of her own life experience, and rushes to the misty rain in the south of the Yangtze River with the agreement between two generations, so that the love, friendship and regrets that have been torn apart by the war can find the most tender perfection in the echo of time.
