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.

• CJ Entertainment
• Cinema Service
• Kim Ok-vin
• Seo Ji-hye
• Cha Ye-ryun
• Kim Seo-hyung
• Lim Hyun-kyung
• Jeon Yeo-jin
• Eun-kyeong Na