Sekiuchi, o presidente do poderoso clã Yakuza Sannokai, arma e instiga a morte entre os pequenos clãs da família e a pequena família Murase, de forma a tomar a região controlada pelo chefe Murase e centralizar em si o poder do grupo Sannokai. O filme discorre sobre traições e vinganças e é composto de cenas fragmentadas, quase sempre revelando as verdadeiras facetas das personagens.
Fujio e Mitsuo, dois perdedores, que trabalham numa fábrica de extintores e passam os dias discutindo e desperdiçando tempo. A dupla sonha em se tornar campeã em jiu-jitsu e passam muito tempo treinando. Um dia acabam matando seu chefe por engano e o enterram numa montanha que mal sabem ser um depósito de lixo tóxico onde são desovadas hordas de zumbis comedores de carne.
Kota Mizutani, a 10-year-old boy whose health worsened after he saw a murder, is brought to Akiko's clinic by his mother Mariko. Kota says that two months ago, he witnessed a man in a park strangling a woman with a cord and was chased by the man afterwards. Hamada, who listens to his story along with Akiko, immediately performs an investigation but cannot find any traces of the crime. However, Kota's testimony gains credence when the body of a woman killed two months before is discovered on a construction site in Kawagoe. Acting on a tip from a citizen who says she had been wearing the same clothes as the victim, the police search the house of Kazuko Shimazaki, a photographer who is often absent. But when Kazuko returns from her trip with her assistant Hirano, it becomes clear the victim is a different person.
