Genius conductor Lin Yan's career was cut short due to a car accident, his right hand was seriously injured, and he even suffered from strange sequelae - he could "see" the shape of sounds. Ordinary sounds turned into twisted blocks of color and tentacles, and the world seemed strange and strange to him. When he was trying to survive in the dilapidated attic, a distorted sound that was definitely not human came from the neighbor's house downstairs, turning into sticky black tentacles and diseased patches, penetrating the floor and entangling. Lin Yan was forced to be involved in an abnormal event beyond imagination. He must use his out-of-control "Shape of Sound" ability to explore the truth on the edge of madness and reason, and all of this seems to be closely connected with the fate-changing car accident.