Takashi Oshii is a detective with excellent reasoning power. Unfortunately, he usually misses the criminal in front of him and other detectives gets get recognition for the capture. He is transferred to the Utobashi Police Station.

Takashi Oshii goes to a record company CEO's house. The CEO's third son was burned to death. The police are set to conclude that his death was an accident, but Takashi Oshii thinks otherwise. Takashi Oshii begins to investigate.