Gemini (also known as Sôseiji) is a 1999 horror film by Shinya Tsukamoto, loosely based on an Edogawa Ranpo story, which pursues his theme of the brutally physical and animalistic side of human beings rearing its ugly head underneath a civilized veneer, present in previous films like Tetsuo: The Iron Man (1989) and Tokyo Fist (1995), in what is a new territory for Tsukamoto—a story set in the late Meiji era (1868–1912) with no stop-motion photography and