Piégées dans un immeuble vide, neuf personnes doivent participer à un jeu dans lequel leur moindre mouvement est enregistré. Une seule d'entre elles en sortira vivante.
Gofar (Gofar Hilman) and Guntur (Guntur Triyoga) who work as radio broadcasters in Jakarta, always feel someone is watching every broadcast of their Midnight program. Guntur also always feels scared because there are sightings of casting demons. The radio station is a building with a production house office that often holds casting.