Famous director Huixu (Park Ji-hoon), who is famous for his experimental films at major film festivals overseas, will shoot on the roof of an abandoned school with rookie actors Shiying (Kim Yoon-hye) and Chae-yoon (Song Yi-jae) in order to shoot a new work with the theme of dance. After starting the filming with unconventional and rough dance moves, the actors and producers were swallowed by a mysterious force, and the filming site instantly fell into a miserable situation. "The zombies have awakened!" What will be their fate in the face of the existence that should not have awakened...