Ide of the Kokusai Rayon Company visits a supermarket and finds cheap shirts being passed off as his company's products. But a closer look reveals that the last letter of "Kokusai" has been changed to "n" and reads "Kokusan." The buyers, however, are all under the impression that they are buying Kokusai shirts. Ide begins an investigation to find out where the shirts are being made, but before he is able to uncover anything, he is killed on a train and his little black book, filled with secret data, is stolen. Sugino then starts a one-man search for both the killer and the factory turning out the cheap shirts.

Nitani is an undercover drug enforcement agent in Kobe who not only busts two rival drug gangs but also helps one of the more decent hoodlums find the killer of the hood's brother.

A luxury car was stolen near a certain nightclub in Akasaka, and the owner of the car was shot and killed. The investigation by detective Nagata, head of the Metropolitan Police Department's Investigation Headquarters, revealed that the perpetrator shot a silenced gun, and that a film camera was taken away from the car he abandoned. Furthermore, fluids left at the scene indicate that the perpetrator was a tuberculosis patient...

After discovering a slaughtered corpse, the investigating team of the Tokyo Metropolitan Police Department began canvassing the area around the crime scene. As a result, they found a wallet with bloodstains that seemed to belong to the victim, a woman's wallet that did not fit the field, earrings, and other valuable materials, which led them on a foot search. The woman's purse had been picked up by a male prostitute on the subway, and from the prostitute's testimony, they were able to identify the pickpocket's face, but the next day, the man was found dead in a road accident, apparently murdered.

A robbery and murder occurred at a gas station facing the national highway at 1:00am. Detectives Nagata, head of the First Investigation Division, begins investigating. Two bullets were removed from the corpse of a staff member on duty at the station, and the last car to be refilled with gasoline, Sakura Taxi No. 5-E1044, appears on the line of investigation. The same night, a robbery murder case was discovered using the same US military gun that was used on the gas station victim.

The fifth installment of the Metropolitan Police Department story series. This time, detectives from the Tokyo Metropolitan Police Department's First Investigative Division are once again in action, full of thrills and speed, in pursuit of the perpetrator of a mysterious murder that suddenly occurred at an auto race track.

A tragic drama - a dismembered torso of a woman rises up on the banks of the Arakawa River. The body is only the torso. Her legs were discovered on the opposite bank. The only clue, a man was trying to throw something in from a car with a license plate number three days ago at Shin-Arakawa Ohashi Bridge...

A man who uses marriage as bait goes from woman to woman, and then a horrific murder is committed for money. Seven police man chase the vicious criminal who disappeared into the vortex of the big city.

The body of a woman was found in a manhole. Is it an affair? The victim is a clerk at a mannequin manufacturing company. At the age of 26, she was a widow with a child, and she went missing after he went to collect her salary from the bank. A colleague at work said the victim was wearing an opal ring, but the bank clerk says she wore a jade ring when he came to withdraw money.

In post-war Japan, it is difficult for private business to stay afloat. The small atelier has a debt of several million yen. To get a loan, his proprietress is forced to turn to a successful businessman, owner of entertainment establishments and bars. But she has nothing to guarantee the return of the debt, and then she offers herself as collateral. A drama about the contradictory nature of human feelings.

An industrial espionage film.

Well before “Shogun” as warring clans were fighting for power throughout Japan, a Portuguese vessel ran aground off Tanegashima. Lord Tokitaka helped Captain Pinto repair his ship. The grateful captain offered the lord a gift--a matchlock musket—the first firearm ever seen in Japan. But like a great stone hurled into placid waters, this simple gift will start a revolution. Tokitaka tasks Kinbei, his greatest swordsmith, to copy this musket and build guns for Japan. While Kinbei struggles to forge Japan’s first musket, a great love blooms between Captain Pinto and Kinbei’s daughter Wakasa. But for Kinbei, to let Wakasa marry Pinto and go to Portugal is unthinkable. And as Kinbei creates Japan’s first matchlock factory, Lord Oda Nobunaga will seize upon firearms as the key to sweep all other clans before him, tearing a blood-soaked path of destruction through Japan.

A crime film released in 1965

Chairman of the Shin Nihon Kaihatsu company Fukazawa, using clever ways to circumvent the law, rose to the top of the economic backstage. Three people are sacrificed to his greed. The president of a small company who committed suicide, a Yakuza who died during the destruction of his territory, and a former viscount whose wife and property were stolen by Fukazawa. Their sons vowed to hunt down Fukazawa and take revenge.

Two people disappeared, engineers of the companies Yamato Matsui and Koyama. The two worked overtime, and it is proven that they consumed alcohol together. According to the sushi restaurant employee who delivered an order around 9 p.m., the two were arguing loudly. Traces of blood were found at the scene, and it looks like a murder occurred. The Investigative Department begins an investigation… The 24th work from the popular series "Keishicho Monogatari", which documents the activities of the First Investigation Division of the Capital Police Department.

The corpse of a debt collector, Sakai, is found in the Dobu River in Tokyo. Kinoshita, a shoe shiner who was in debt to Sakai, was soon apprehended. During interrogation, Kinoshita said that he was the one who killed Sakai. However, after a while, he admitted that he lied, because he thought that in prison he could eat plenty of rice for free. The investigation established that Sakai was a repatriate from Manchuria, and after returning to Japan, he had a wife, Rie Kawai. The investigation begins the search for Rie... The 23rd work from the popular series "Keishicho Monogatari", which documents the activities of the First Investigation Division of the Capital Police Department.

A 16-year-old high school student Midori Matsumoto was found dead on the banks of the Tama River. The only clue is shoe marks on rubber soles. From the interview of witnesses, it became clear that Midori was walking with a guy last night. In addition, it turned out that Midori was close to a college student Kimoto, and a high school student Miyazaki. According to his friends, Miyazaki had an alibi, but Kimoto did not. A unique work in which the problems of teenage sex are considered from the point of view of the murder of a girl. The 21nd work from the popular series "Keishicho Monogatari", which documents the activities of the First Investigation Division of the Capital Police Department.

A burnt corpse of a man was found in Okutama. As a result of the investigation, it turns out that the criminal strangled the victim with a bandage, smashed his face with an oil canister and burned the body, trying to hide the identity of the victim. But the investigation establishes that the victim is a former criminal named Hisashi Sayama. According to Sayama's daughter-in-law, a man named Kitamura got him a job, so he left home with a copy of the family register. Trying to find the killer, the First Investigation Department is investigating all over the country, including Akita, Yokkaichi and Okinawa.

A man confessed to killing a woman in a labyrinth 2 years ago. The detectives must now conduct a "backing investigation" to determine whether his confession is true, because the law states that a confession alone is not enough to make the case. The 20nd work from the popular series "Keishicho Monogatari", which documents the activities of the First Investigation Division of the Capital Police Department.