Synopsis
あらすじ

Miki, a 27-year-old woman with a slightly eccentric personality, works at an architectural firm. She still remembers a summer afternoon from her childhood when her mother disappeared from their home and a monster appeared in her place, leaving her terrified. Did that really happen…? One day, while walking down the street, she wandered into a back alley and was bitten by a beast-like creature. When she returned to the office and told her colleagues, “I was bitten by a wolf,” they naturally didn’t believe her. From that day on, Miki’s senses became abnormally heightened, and her emotions grew increasingly unstable. Her partner, Yuichi, who lives with her, grew concerned. He recorded Miki’s sleep-talking as she was having nightmares, and when he took her to a psychiatrist, they discovered that what she was saying was Latin—a language he’d never heard before. Miki also spoke to her mother about it, but her mother brushed it off, saying, “You used to say you were bitten by a wolf when you were a child, too.” Around that time, a mysterious invitation arrived for the increasingly unstable Miki. It was from a suspicious group called the “Tsukimachi-kō,” but, desperate for something to hold onto, Miki went to meet them. There, waiting for her, were a group of elderly priestesses who believed in communing with the gods, and their words: “Open the door.” Something was beginning to happen to Miki…

27歳の美紀は設計事務所で働く、少し風変わりな女性。子供のころの夏の午後、家で母がいなくなり、代わりに魔物がやって来て怖い思いをした記憶が残っている。あれは本当にあったことなのか…。ある日、道を歩いていると迷い込んだ路地裏で獣のようなものに嚙みつかれた。社に戻り、同僚に「狼に嚙まれた」と言うが当然信じてもらえない。その日から美紀は五感が異様に研ぎ澄まされ、情緒も不安定になっていった。同居するパートナー・雄一も心配し、うなされる美紀の寝言を録音し、精神科の医者に美紀を連れて行くとそれは聞いたこともないラテン語であったことが判る。美紀は母親にも話をするが、母は「子供の時にも狼に噛まれたって言ってたね」と気にも留めていない。そんな折、不安定な美紀に不思議な招待状が届く。それは、「月待講」という怪しげな集団からのものだったが、美紀は何かにすがりたい思いで出かけていく。そこで美紀を待っていたのは、神様との交じりを信仰する巫女(老婆) たちの「扉をあけなさい」という言葉だった。美紀に何かが起こり始めていた…。