An unnamed doctor has always had everything he's ever wanted, but that has only made him develop more extreme and depraved needs. He kidnaps a young couple in the prime of their life together and forces them into a game of torment that slowly extinguishes their hopes for survival.
In future Tokyo, a young woman in the privatized police force tracks down her father's killer while battling against mutant rebels known as engineers.
When typical Japanese high school student Rika skips school to visit her grandfather, she fails to take into account the fact that his remote village is infested with the living dead.
