Nightmare Detective ( 悪夢探偵, Akumu Tantei) is a 2006 Japanese horror film directed by Shinya Tsukamoto and released by Movie-Eye Entertainment Inc, starring Ryuhei Matsuda and hitomi. Masanobu Ando and Ren Osugi play supporting roles, and Tsukamoto himself plays the unnamed villain. The film is shot entirely within Adachi, Tokyo. Nightmare Detective 2 was released in 2008. Matsuda returns in the lead role of Kagenuma. Hitomi declined to reprise her role.