"This is the last chance! Reiko, please..." Reiko, who had retired from the undercover investigator after getting married, will infiltrate the casino where a certain organization is hiding as an investigator again at the request of her husband. She pretends to be a customer and tries to get in touch with the organization's executive, Sagawa, but she doesn't reveal her true identity. She is Reiko who arranges an opportunity for her collaborators to contact Sagawa, but her actions are known to Sagawa. And when Reiko is alone with Sagawa in a hotel room, she finds out who Sagawa really is...
