Zhou Wan, a violin girl who has an absolute sense of pitch but is silent due to family changes, accidentally discovers the secret of the campus piano prince Shen Ci who is unable to play due to traumatic deafness after transferring to another school. The souls of two people trapped in music, in the midst of lies and truth, noise and silence, get close to each other, "hear" each other's heartbeats in a unique way, find the courage to return to the stage together, and compose a piece of music about youth, healing and love.