Murder of Togashi

The investigation into the brutal murder of Togashi is initiated, but progress quickly stagnates. Despite the evidence collected, the suspect maintains an unimpeachable alibi that frustrates law enforcement efforts.

Yasuko's Ex-Husband Dies

Yasuko Hanaoka becomes the center of scrutiny following the sudden death of her ex-husband. The circumstances surrounding his death raise suspicions and draw attention to her life as a single mother and restaurant owner.

Tetsuya Ishigami Enters the Scene

Tetsuya Ishigami, a reclusive but brilliant individual, is drawn into the turmoil surrounding Yasuko and her daughter Misato. His growing concern for their safety compels him to offer his assistance during this chaotic time.

Body Count Rises

As law enforcement digs deeper into the case, the body count begins to increase, adding urgency to the investigation. Tensions escalate among those involved, prompting detectives to intensify their efforts.

Detectives Seek Expert Help

Detective Kaoru Utsumi, alongside her superior Detective Shunpei Kusanagi, reaches out to Professor Manabu Yukawa. Known for his brilliance in solving intricate cases, Yukawa’s expertise is seen as vital to understanding the ongoing complexities.

Yukawa Learns of Ishigami's Involvement

Initially reluctant to take on the case, Yukawa's interest is piqued upon learning that his former classmate, Ishigami, is involved. This connection compels him to engage more deeply with the unfolding mystery.

Intellectual Duel Begins

As Yukawa delves into the investigation, he finds himself embroiled in an intense intellectual duel with Ishigami. Both men, driven by their motivations, engage in a battle of wits that shapes the direction of the inquiry.

Unraveling the Mystery

Yukawa gains insight into the complexities of the case, gradually unearthing hidden truths. However, with each revelation, the stakes grow higher, leading to a more intricate web of deceit and danger.

Confronting Darker Elements

As the investigation progresses, Yukawa is forced to confront the darker elements of human behavior. The inherent cruelty of circumstances challenges his previously held beliefs about detachment and rationality in high-pressure situations.

Heartbreaking Conclusion

The investigation culminates in a heartbreaking conclusion that results in distress for all involved. The emotional impact leaves Yukawa, Ishigami, Yasuko, and Misato grappling with the catastrophic outcomes of their entangled lives.