CSI: Crime Scene Talks

Shigeo Hosono (Hiroyuki Watanabe), who runs a real estate company, is found murdered in his office. Recently, Hosono was a topical person whose video was spread on SNS and went up in flames. In fact, in the high-end residential area where Hosono lives, there was a plan to build a 'child independence support center' where boys and girls who have committed crimes will go to rehabilitate, but Hosono, who is the forerunner of the opposition, holds a residents' briefing. He was criticized for making discriminatory remarks.
Satoshi Itomura (Takaya Kamikawa), who was there, noticed that only the nails on Hosono's left hand were cut short. Also, a nail clipper was found in the pocket of his clothes, which raises questions about the fact that he was carrying a nail clipper, and that the shape of the nail clipper is slightly different from the usual one.

Kusumi Takeshi (Tokui Yu), a male resident, is found strangled to death in one of the apartments. Satoshi Itomura (Takaya Kamikawa), who is there, notices that Kusumi is holding something like a transparent thread in his hand.　
Soon, a surprising fact about Kusumi surfaced. His fingerprints match those of a suspect in an unsolved robbery. Seven years ago, a robbery broke into a couple's home. The robber stole jewelry and fled, but the victim's wife, who had a chronic heart disease, suffered a seizure from shock and lost her life. had caused a situation. According to Amemiya Hiroshi (Nagai Univ.), a member of the Special Investigations Office who was in charge of the investigation at the time, the stolen goods were not sold and no strong suspects came to mind, and the case went into a labyrinth. It says.
Shocked by the progress of the investigation in an unexpected way, Amamiya remembers a young man. That person is Shun Miyahira (Yuki Tamaki) who currently works at a yakitori restaurant. In fact, during the incident seven years ago, Shun heard a scream while jogging and went to the victim's house to help, and got into a fight with the criminal and injured himself. That injury cost him a chance and forced him to give up his dream as a boxer.
Strangely enough, Kusumi was a regular customer at the yakitori restaurant where Shun works. When Shun learns from Amamiya that Kusumi was the robber, Shun shows a surprised expression, but he says that he forgot about the incident long ago...!?

Shota Himuro (Tsubasa Sakiyama), a detective in the Second Organized Crime Countermeasures Division, is found stabbed to death. Rio Kanzaki (Chiaki Kuriyama), who was there, was shocked. Himuro was Rio's junior, and she had just met her for the first time in a while and had dinner a few days ago. Satoshi Itomura (Takaya Kamikawa) is curious about the gold chain that Himuro was carrying, but he has no idea if it belongs to something...
It turns out that while he was alive, Himuro was following the dark website organization 'Mole' that illegally traded insider information. In addition, it is understood that in the past few days, Hazuki (Nami Morihi), a maiko, and Ryusuke Iwase (Kanji Tsuda), a former police officer and security guard, have gone to see each other. He seems completely ignorant and says he has never seen a chain.
In the midst of this, the fact that Himuro frequently browsed investigative materials related to past murder incidents surfaced. Himuro's death, the dragon, and the random incident--what kind of connection do these three incidents have?!
Itomura and the other members of the Special Countermeasures who continued their diligent investigation eventually ran into an unexpected person. That person is Yasuhiro Mononobe (Hideki Takahashi), the director of a large hospital who has a strong connection to the political world, but...!?

A few days after the murder of Shota Himuro (Tsubasa Sakiyama), a detective from the Second Organized Crime Countermeasures Division. Former police officer Ryusuke Iwase (Kanji Tsuda) is attacked by someone. Satoshi Itomura (Takaya Kamikawa) rushes to the scene and finds a small folded paper crane where Iwase had collapsed.
During his lifetime, the deceased Himuro pursued a dark website organization called 'Mole' that illegally traded insider information. Kento Shibuya) continued to investigate. Sawamura was found burnt to death on the river bank half a year after the incident, but Iwase seems to have doubts whether the corpse was Sawamura himself. Since Himuro and Iwase have been in contact recently, Itomura and the other members of the Special Investigations Office speculate that the culprit who attacked them may be the same person, and that person may be the earth dragon.