Fact1: website called features public diary entries, Fact2: Mima On set of succeeds in getting larger part Double Bind, Fact3: producers decide to cast her as rape victim in strip club, Fact4: reality starts breaking down for viewer as well, Fact5: Rumi is in false diarist of Mima 's Room fact
Output: Mima Kirigoe, the lead singer of the fictional Jpop idol group CHAM!, decides to leave the group to become an actress, believing that the idol group life is a dead end job. Her first project is a crime drama series, Double Bind. Some of her fans are upset by her change in career, including a stalker known as MeMania. Shortly after leaving CHAM!, Mima receives an anonymous fax calling her a traitor. She also finds a website called Mimas Room, which features public diary entries that seem to be written by her that discuss her life in great detail. She brings the site to the attention of her manager, expop star Rumi Hidaka, but is advised to ignore it. On the set of Double Bind, Mima succeeds in getting a larger part. However, the producers decide to cast her as a rape victim in a strip club. Rumi warns Mima that it will damage her reputation, but Mima accepts the part, wanting to be taken more seriously as an actress. The scene traumatizes Mima as well as Rumi, who leaves the production control room crying. Mima increasingly becomes unable to distinguish reality from her work in show business. Several people involved in creating Double Bind, including the shows writer and photographer, are found murdered. Mima finds evidence that makes her a suspect in those murders, based on entries on the Mimas Room website, and her increasing mental instability makes her doubt her own innocence. Meanwhile, MeMania is constantly shown standing amongst the Double Bind filming crew, and his obsessive home life is revealed when he is shown receiving emails from Mimas pop idol persona through the Mimas Room website. It is at this point that reality starts breaking down for the viewer as well: in one scene, Mima is revealed by a police psychiatrist to be the split personality delusion of a woman named Yoko Takakura, only for the Double Bind camera crew to yell Cut; in another, MeMania finally confronts and attempts to rape Mima, stopped only when Mima knocks him unconscious with a hammer; this too is hinted as being part of a Double Bind film shoot. Rumi finds Mima backstage immediately afterward, and MeManias blood and body are not found on the nowempty set. Rumi offers to drive Mima home. Upon arriving, Mima tries to place a call, but stops upon realizing that she is actually in a room decorated to resemble her own pop idol apartment at the beginning of the film. When Mima encounters Rumi, however, her manager is wearing a replica of Mimas CHAM! costume and fully believing, in a psychotic break, that she is Mima herself. Rumi is in fact the false diarist of Mimas Room, who believes she is the real Mima. Rumi is angry that Mima—who has been suffering from folie a deux throughout the film—has been ruining the real Mimas reputation, and decides to save Mimas pristine pop idol image by murdering the original, who she believes is an imposter. Mima manages to incapacitate Rumi in selfdefense after a chase through the city despite being wounded herself, then saves Rumi from an oncoming truck. Severely wounded and fully delirious, Rumi mistakes the trucks headlights for stage lights. Both parties collapse as the trucks occupants call for an ambulance. Mima, now an accomplished actress, shows up at a mental institution to visit Rumi, who, believing the flowers Mima leaves for her as from her adoring fans, seems to now permanently exist in her Mima delusion. As Mima leaves, she overhears the nursing staff believing that she is a Mima imposter, as she would have no reason to visit an institution. Mima enters her car and, looking into the rear view mirror, declares Im the real thing and smiles.