Jae-hyun, a foley artist, is never satisfied until he finds the perfect sound. He is now faced with the task of making the sound of footsteps for the main character. However, when he finds out his favorite pair of worn-out shoes are gone, Jae-hyun stops working and goes outside. At that moment, he hears a family's footsteps. Bewitched, Jae-hyun starts to follow the sound.