- Country: Japan
- Genres: Drama, Fantasy, Horror
- Release: 1999-09-15
- Director: Shinya Tsukamoto
- Writers: Shinya Tsukamoto , Rampo Edogawa
- Language: Japanese
- Stars: Masahiro Motoki , Masahiro Motoki , Ryō , Yasutaka Tsutsui , Masako Motai , Renji Ishibashi , Akaji Maro , Tomorowo Taguchi , Jun Murakami , Yukito Mizoguchi , Eri Yu
- Runtime: 84 min
- Awards: 3 wins & 4 nominations
- AKA: Gemini (Canada) , Близнецы (Russian Federation) , Gemini (Italy) , Sôseiji (Spain) , Sôseiji , Gemini (Japan) , Gemini (Hungary) , Gemini (France, French Republic) , Gemini (Brazil) , Gemini (United Kingdom) , 双生児 (Japan) , Gemini - Tödlicher Zwilling (Germany) , Gemini , Gemini (Netherlands the) , Gemini (United States of America) , Blíženci (Czech Republic) , Znamię (Poland)
- Plot: Yukio is living a charmed life: he is a respected young doctor with a successful practice and a beautiful wife. His only problem is that his wife is suffering from amnesia, and her past is unknown. Things begin to fall apart, however, when both his parents die suddenly, killed by a mysterious stranger with Yukio's face. Only when Yukio confronts this stranger will the mystery of his identity, and his wife's past, be revealed.
- IMDB:tt0210302
Gemini Cast · · · ALL
Shinya Tsukamoto
Director
Masahiro Motoki
Yukio Daitokuji
Ryō
Rin
Shiho Fujimura
Yukio's Mother
Yasutaka Tsutsui
Yukio's Father
Masako Motai
Shige
Hisako Ookata
Taki'e
Yuki Inomata
Suzu
Yuriko Hirooka
Toshiko
Akaji Maro
Kakubê
Naoto Takenaka
Rich Man
Tadanobu Asano
Revenger with Sword
Tomorowo Taguchi
Middle-aged Patient
Jun Murakami
Young Patient
Yukito Mizoguchi
Child
Sujin Kim
Detective
Hikaru Yoshikawa
Patrol Officer
Masao Imafuku
Old Man in the Slums
Eri Yu
Hiromi Kuronuma
Takahiro Murase
Bin Moritsuka
Mineko Yorozuyo
Koinojô Nishikawa
Midori Yamamoto
Hitoshi Takagi