A Korean traditional music student desperate for recognition joins a forbidden shamanic ritual as a drummer. Once criticized for lacking han—the deep, unresolved sorrow that defines the Korean soul, her rhythm begins to awaken something beyond the living. She gains attention but also suffers unexplained burns and terrifying visions. When her friend dies in a suspicious fire, she uncovers a chilling link between the ritual, a series of mysterious blazes, and vengeful spirits. Now, with each beat of her drum, she channels the wrath of the dead—playing not for applause, but for revenge.