Nombre original: 원스텝
Fecha de estreno: 6 de abril de 2017
Película
Tiempo promedio: 87 minutos
Géneros: Musica, Drama
Sinopsis: Si-hyun who lost all memory after a car accident and has colored hearing in which she can see sounds in colors, tries to complete the melody in her dreams. As the song nears completion, Si-hyun's fragmented memories return to her.