The fourth installment of the Fatal Frame series was developed for the Wii in co-production with Grasshopper Manufacture.Tentatively titled Fatal Frame IV: Mask of the Lunar Eclipseand published by Nintendo.
10 years prior to the events of the game, five young girls were captured and held hostage by a criminal in a mysterious house on Rougetsu Island. They were eventually rescued by Choushiro Kirishima, a detective pursuing the criminal. Several years after the incident, two of the girls (Marie Shinomiya and Tomoe Nanamura) died mysteriously. The three remaining girls, Misaki Asou, Ruka Minazuki, and Madoka Tsukimori, now 17 years old, return to the island to recover their lost memories and find out more of what happened that day. Choushiro follows the girls at the request of Ruka's mother, Sayaka Minazuki.