Iman, a girl with a heart that sings to the tunes of her doubts and fears, leaves the halls of medical school behind. Music, a forbidden melody for her soul, is a constant test to her and her beliefs. To find solace and strengthen her connection with Allah, she embarks on a spiritual pilgrimage. It is in this journey of self-discovery that her path crosses with Park Sunghoon, who too walks the path of repentance.