The film is set in a Japan that is rocked with unusual crimes. A person known only as “Key Man” (Itsuji Itao) has created a genetic virus that mutates humans into terrible creatures called “Engineers” that sprout biological weapons from any injury. The now privatized Tokyo Police Corporation has been dealt the task of eliminating this threat and a special task force of officers called “Engineer Hunters” are created. Unlike the average and traditional police force, these Engineer Hunters are a private militarized force that utilize everything at their disposal to maintain law and order. And I do mean everything that is brutal – violence and torture in its varied forms. It becomes a mish-mash of RoboCop meets Judge Dredd but without the obligatory humor and justice one comes to expect.