Shen Yuan is a piano tuner on the edge of the city. He walks among high-rise buildings during the day and walks alone on the streets where noise and silence intersect at night. His life is like a wiped piano key, shiny on the surface but with hidden cracks inside. Three years ago, he lost his love and future in a well-woven financial scam. The man behind the scenes has now transformed into an urban upstart, dominating Shen Yuan's world. Shen Yuan did not choose swords, guns and violence, but used music as his blade and the hand of tuning to get close to everyone related to the tragedy of the past. He uses melody to reveal human nature, uses silence to press for the truth, and weaves a bloodless revenge in the light and shadow of the city. Every time the piano sounds, a layer of hypocrisy of urban prosperity is torn away - he wants his enemies to collapse in the elegant melody, while he wanders between revenge and redemption, looking for his lost self. This is not only a revenge, but also a showdown between the soul and the city.
