Alive is a 2002 Japanese science fiction film directed by Ryuhei Kitamura. Based on the manga of the same name, the film focuses on Tenshu, a convict placed in an isolated cell with another convict and a mysterious woman possessed by an extraterrestrial life form known as the "Isomer", which possesses those with murderous instincts. The film stars Hideo Sakaki, Ryo, Koyuki, Erika Oda, Jun Kunimura, Bengal, Tetta Sugimoto, and Tak Sakaguchi.