Corpse Party is a 2015 Japanese horror film directed by Masafumi Yamada and starring Ikoma Rina, Ikeoka Ryōsuke and Maeda Nozomi. The film is based on the Corpse Party video game series. It was released in Japan on August 1, 2015. A sequel, Corpse Party Book of Shadows was released on July 30, 2016.
Plot
Facing goodbyes and graduation, Naomi Nakashima, her childhood friend Satoshi Mochida, and their classmates; Seiko Shinohara, Yoshiki Kishinuma, Sakutaro Morishige, and Mayu Suzumoto are clearing up after their last cultural festival, when class representative Ayumi Shinozaki decides to perform a charm called "Sachiko Ever After" using paper slips so they will all stay friends forever. Their teacher, Yui Shishido, comes in with Satoshi's younger sister Yuka, and everyone performs the ritual together but are swallowed away to a different dimension after. They find themselves at Tenjin Elementary School, forced to close years ago after a series of gruesome murders. They read newspaper articles detailing a killer of two children, Yuki, Ryou, and a red girl, Sachiko, gone missing. A man with a hammer, Yoshikazu, kills Yui. Naomi twists her ankle and Yuka disappears. Ayumi and Yoshiki witness the two ghosts Yuki and Ryou killing Mayu, and Naomi finds Seiko hanged. An insane Sakutaro gives Yuka chase until Yoshikazu kills him. Ayumi and Yoshiki discover a video cassette and a jar of severed tongues. The video was recorded by famous spiritualist Kou Kibiki, showing him and his assistant exploring the school before facing their demise. Kou explains that in order to return home, the school's curse must be lifted and they need their paper slips. Naomi thinks she has lost her slip, but Ayumi actually has it, jealous because of Naomi's relationship with Satoshi, whom Ayumi is obsessed with. She gives Naomi a fake slip and secretly burns her real one. They encounter Yuki and Ryou, and Ayumi returns their severed tongues, restoring their sanity. Yuki shows Ayumi a vision that the perpetrator is Sachiko. Yuka is murdered by Sachiko, and Yoshiki sacrifices himself to allow the others to escape. Naomi discovers Seiko's true death when looking at the security cameras: Naomi was possessed and killed Seiko. Naomi breaks down until Seiko's spirit relieves her. She sees a vision of the past that shows Sachiko's mother, Yoshie, who was the school's nurse, being pushed down the stairs by Takamine, the principal. Yoshie broke her neck, and Sachiko, who witnessed the incident, was strangled by Takamine. He then hid her body to erase the evidence. This began the curse. Naomi and Satoshi uncover Sachiko's body. Another vision is shown where Sachiko's spirit causes Takamine and his son, Yoshikazu, to suffer for his misdeed. Sachiko's body rises and attacks Satoshi and Naomi. Ayumi reads out from a diary about how Yoshie doesn't want her daughter killing anyone and to pass on peacefully. With the school collapsing, the trio proceed with the ritual. Naomi and Ayumi make it back home, each holding Satoshi's severed arms.
