Gurozuka

Gurozuka ? is a 2005 horror film directed by Yoichi Nishiyama, and written by Ao Murata and Tadayoshi Kubo.

Once everyone has set up at the Yuai House, Maki and Ai show the other girls an old 8mm tape Maki found while cleaning out the club room at the school. The video, titled Gurozuka, is set at the lodge, and depicts someone wearing a Noh mask killing their costar with a meat cleaver. The students debate over whether the murder shown on the tape was real, and the next day the car fails to start, and all the food, cell phones, and wallets disappear, along with the Noh mask and cleaver that were going to be used in the film project.When night falls, Natsuki disappears, and Takako and Yuka are nonfatally poisoned, prompting Yoko to leave in search of aid. In the morning, Ai looks over footage shot by Natsuki, which shows her being assaulted by someone wearing the Noh mask. Ai runs outside and finds Maki, who claims to have seen the masked woman just moments ago. The two then find all the missing food dumped in the woods, along with the Noh mask and now bloodied cleaver. The girls return to the house, and discover Takako and Yayoi are gone, so they go in search of them along with a recovered Yuka, soon stumbling onto the bodies of Natsuki and Yayoi. The trio returns to the lodge where Takako has been hiding and decide to hold out until the morning. A bloodied Yoko appears banging on the door, begging for help, moments before the Nohmasked figure breaks in. ........

Source: Wikipedia