Jiang Wanqing, an elite lawyer from an international law firm, was ordered to investigate the suspected plagiarism of up-and-coming pianist Lu Linfeng's original song "Moonlight Border" due to a copyright dispute. When they first met, she opened the piano room door with professional scrutiny, but was struck by his impromptu performance of Chopin's "Raindrop Prelude" - that young man sitting in front of the piano with his eyebrows downcast. What flowed between his fingers was not only the notes, but also the piano dream that she had been forced to give up in her childhood. As the case deepened, Jiang Wanqing discovered that Lu Linfeng stubbornly protected not only the copyright of his works, but also the precious manuscripts left behind by his late mentor. When the two men worked together to repair damaged music scores in the midnight piano room, the moonlight danced through the stained glass on their overlapping fingertips. At this time, the partners of the law firm suddenly put pressure on them for a quick resolution, and the music company president Zhou Muyan even revealed an explosive recording of Lu Linfeng's ex-girlfriend... This battle to defend the purity of art will eventually reveal the deepest scars and desires in each other's hearts.
