Two bodies are found lying together on a windswept beach in southern Japan. Toki was a waitress at a Tokyo restaurant, and Sayama worked in a government department under investigation for corruption. The police believe the two must have committed suicide together. All except local inspector Jūtarō Torigai, who begins to have doubts. When dynamic Inspector Mihara of Tokyo's anti-corruption police hears about this, he picks up the investigation with a vengeance. He becomes suspicious of a successful businessman with friends in high places…