Tokyo Gore Police

Tokyo Gore Police (東京残酷警察, Tōkyō Zankoku Keisatsu) is a 2008 Japanese science fiction horror film co-written, edited and directed by Yoshihiro Nishimura and starring Eihi Shiina as Ruka, a vengeful police officer.

Tokyo Gore Police was released to several film festivals in North America. It received generally positive reviews, noting that it lives up to its title by being gory, perverse and bizarre.

In a dystopian Japan, a mad scientist known as the "Key Man" creates a virus that mutates humans into monstrous creatures called "Engineers" that sprout bizarre biomechanical weapons from injuries. To deal with Engineers, the Tokyo Police Force forms a special squad called "Engineer Hunters." The Hunters are a private quasi-military force that utilizes violence, sadism, and streetside executions to maintain law and order.

Among the Hunters is Ruka, a troubled loner skilled in dispatching Engineers. Besides helping the police, she is obsessed with finding the mysterious assassin who killed her father, an old-fashioned officer, in broad daylight. After killing a cannibalistic Engineer named Koji Tanaka, Ruka receives a new case that leads to the Key Man himself. He infects her by inserting a key-shaped tumor into her scar-riddled left forearm before disappearing. Meanwhile, while visiting a strip-club featuring several Engineers as dancers, the Police Chief becomes infected. He massacres the main precinct, causing the Tokyo Police Commissioner to order a city-wide crackdown on Engineers – indiscriminately executing anyone suspected of being one.

Continuing her investigation, Ruka learns that the Key Man was originally a scientist named Akino Miyama, and confronts him at his home. There she learns the truth about their past. Akino's father was a police sniper forced to resign after a failed operation resulted in him sustaining a severe leg injury. Desperate to keep his family out of poverty, he agrees to assassinate Ruka's father, who was leading a rally against the privatization of the police force. Shortly after gunning down Ruka's father, Akino's father was killed by the police commissioner – the real mastermind. Determined to avenge his father's death, Akino injected himself with the DNA of several infamous criminals, turning himself into the Key Man. Realizing they are seeking vengeance on the same man, Ruka slices Akino in half with her katana and heads back to the precinct.

On her way, she witnesses the police force brutalizing civilians accused of being Engineers. When her friend, a local bar owner, is drawn and quartered, Ruka's left arm mutates into an alien-like head with razor-sharp claws before she beheads the officers behind the execution. During her rampage, she is shot in the right eye by one of the officers, but her body quickly replaces it with a biomechanical one. Ruka confronts the police commissioner, who admits to her father's assassination, but explains that upon learning of the Key Man and the Engineers, he raised her to become the perfect Engineer Hunter as a form of atonement. Following a grueling sword fight, Ruka dismembers and eventually decapitates the commissioner – effectively ending his reign over the police force.

The post-credit scene reveals the Key Man is alive, having mended himself with the help of one of his test subjects.

While working on special effects for Noboru Iguchi's The Machine Girl, Yoshihiro Nishimura was asked by Media Blasters if he wanted to do another film. Nishimura decided to make Tokyo Gore Police, a remake of an independent film that he made many years before called Anatomia Extinction which received the Special Jury Award in the Off Theatre competition at the 1995 Yubari International Fantastic Film Festival. Shot and completed in just two weeks, Tokyo Gore Police would be Nishumura's first commercial film.