On January 26, 1948, a robbery of the Teigin bank took place in Tokyo - the criminal poisoned the bank employees and fled the scene with a large amount of money. In parallel with the investigation conducted by the Japanese police, journalists are also trying to find the culprit. Based on a true incident.

Ryuta and Mineo Komatsu are brothers, both yakuza (gangsters). Mineo, although complicit in crime, even murder, wants out of the gangster life, hoping to become a successful singer instead. Ryuta loves his brother, but Mineo's possible defection presents problems for the gang, and Ryuta realizes he must kill his brother if he wants to survive.

Story of romance and rivalry between two ad agencies vying for the same account with a pharmaceutical firm.