While practicing after hours in her high school, an aspiring singer is mysteriously killed and her body vanishes. Her invisible ghost is trapped in the school, but her best friend is able to hear her voice.
Kim Ok-vin
Seo Ji-hye
Cha Ye-ryun
Kim Seo-hyung
Lim Hyun-kyung
Jeon Yeo-jin
Eun-kyeong Na