At a seaside city somewhere in the Tohoku area, the corpses of Nozomi, daughter of an affluent family, and Yamazaki, son of an engineer at the local nuclear power-plant, are found tied-to on a beach, as if they intended to commit double suicide. Nogami, a reporter, begins to investigate.
Yuzo Kayama is an American-Japanese operative working for the US to uncover an arms deal between an American seller and Chinese communists, and to take out both parties. After almost getting assassinated himself, he takes a wounded civilian with him despite living in a world where no one can be trusted.
Tsutomu Yoshioka, a Tokyo office worker, is engaged to Mariko, the niece of his company's president. But Yoshioka has a crisis of consence when he remembers his former love Mitsu, a rural girl whom he met and later left while in college. Shimako, a former friend, persuades Yoshioka to meet with Mitsu while she plots to blackmail Yoshioka by photographing the meeting to break up Mariko and Yoshioka.
As Japan is preparing to host the Olympics, a gang member wanting to go to America is sought after by the police after helping his friend conduct a robbery.