Isao Matsumoto

History

Isao Matsumoto is a former Japanese film writer.

Movies

King of Sha-kin
Screenplay
Mad Dog
Screenplay
A beast awakens within ordinary office worker Hirose when his wife is abducted by yakuza. Full of wild charm and full-scale martial arts action!
The Fighting King 2
Screenplay
An even more radical battle takes place!
The Fighting King
Screenplay
A drama filled battle that goes beyond acting unfolds!
Dark Society in the East
Screenplay
A story about the activities of Southeast Asian Mafia gangs in Shinjuku. Ryosuke Kano is an ex French Foreign Legion soldier and is now a cocaine smuggler and dealer. He is acquainted with Larry, a Japanese American, but he turned out to be an undercover cop from New York.
Lonely Hitman
Screenplay
There are men in this world who seem to have been born to be a villain. His upbringing, his sexuality, everything about him was suited to being in the criminal world. However, he also had a loving wife and children. This is the story of a man who throws himself into a deadly struggle on the front lines of a huge violent war, while at the same time seeking the happiness of his family as a good husband and father.
Love on a Daily Basis
Screenplay
The lives of a young yakuza and his girlfriend.
Those Swell Yakuza
Screenplay
Ryo, a young former banker, gets beaten up over a debt from gambling. A yakuza boss saves him, and Ryo decides to train to become a yakuza under him.
Double Rope Torture
Screenplay
Two sisters are captured by a bounty hunter for an S&M nightclub .
The Blazing Valiant
Screenplay
Jo has just come back to Japan for the funeral of his parents, who were killed in tribal warfare in Africa where the family had been living throughout most of Jo's life. Once the funeral was over, he missed the boat that was going to take him back home, and, because of an altered itinerary, he ends up stopping in a town for awhile -- striking up an acquaintance with a teenager and her grandfather when he captures their runaway horse. He would have been glad to leave after the proper amenities were completed, but the girl's journalist brother is murdered -- he was getting too close to wrapping a major news story. At that point, Jo and a friend cannot easily drop the matter as though nothing had occurred, and the two start to track down the source of the trouble -- a factory that makes poison gas for Third World buyers. Now their task is to dismantle the operation, prevent one train shipment from arriving at a transfer point, and find the journalist's killer.
Nun Story: Frustration in Black
Screenplay
Nunsploitation from Japan. Part of the Shûdôjo series.
The Shogun Assassins
Writer
This is a film about a real person. Sanada Yukimura fought a war against Tokugawa Ieyasu.
Rope and Skin
Screenplay
Okoma (literally, Red Cherry) was a woman gambler until she retired from the yakuza world. Two years later, she returns home, and finds that the big boss has been assassinated and his daughter is having trouble keeping things in line against the rival gang headed by the men who killed her father. Okoma decides to avenge her former boss and help his daughter, a former friend of hers. She recruits her own gang, starting with an expert knife-fighter, her former lover. After a fight, the new Gang Leader captures and tortures Okoma sadistically.
The Okinawa War of Ten Years
Screenplay
After World War II, when Okinawa was under control of the United States, the local yakuza prospered. But when Okinawa is returned to Japan, the mainland yakuza tries to take over; the local yakuza tries to compete. Now sides are drawn among the local yakuza guys who used to be best friends since their childhood, and brother fights brother. It results in the biggest yakuza war in Okinawa.
Golgo 13: Assignment Kowloon
Screenplay
Duke Togo (codename: Golgo 13) is a ruthless assassin who's accepted a tricky assignment from an American drug syndicate. His mission is to "rub out" Hong Kong's underworld kingpin. His main obstacle is the relentless Detective 'Smitty' Smith, determined to stop Togo no matter the cost. The result is an explosive adventure through the seamy, violent streets of Hong Kong.
Legend of Dinosaurs and Monster Birds
Writer
A Japanese geologist discovers that dinosaurs still exist in caves beneath the surface of a volcanic lake.
The Smart Aleck Ten
Screenplay
Based on the comic by Toshiya Masaoka.
Kawachi Rascal Is Spurred On
Screenplay
The Yakuza Code Still Lives
Writer
After spending eight years in prison for murder, Hiroshi leaves his yakuza family to start a new life as a labor racketeer.
Sister Street Fighter: Fifth Level Fist
Screenplay
Kiku Nakakawa, the only daughter of an old kimono shop owner in Kyoto, is enthusiastic about karate. To help her friend Michi avenge her brother, she sneaks into a movie studio in Kyoto where a drug dealing syndicate is based.
The Racketeer Ishimatsu
Screenplay
Action-comedy film featuring the adventures of an itinerant merchant (Hiroki Matsukata) that becomes an unlikely hero.
A Cheerful Yakuza
Writer
Female Ninjas: In Bed with the Enemy
Screenplay
Female ninjas nudity and sword-weilding action directed by Takayuki Miyagawa is bawdy and thrilling! The female ninjas are sent undercover (sometimes under bed covers) to investigate the disappearance of a gold chest.
The Killing Machine
Writer
Mr. Soh, a righteous man with a cold stare and fists of steel, returns to a lawless post-war Japan in 1946. He protects the weak, defends the poor and knocks some good sense into friends and enemies alike. Rapists and gangsters get the worst of it, as Mr. Soh builds up his school on the island of Shikoku.
Scoundrel Boss
Screenplay
The International Gang of Kobe
Screenplay
In 1947, in Kobe, Japan, a local street gang fights for their survival when its turf is overrun by United States occupation forces and international gangs.
Detonation: Violent Riders
Writer
Wild-hearted mechanic boy Iwaki falls in love with the innocent but gang tied Michiko.
The Murder Corps
Screenplay
A violent upstart forms an alliance with the powerful Tensei-kai syndicate to fight on the front lines of an underworld war and take over all of Japan.
Reformatory Buddies
Screenplay
Third film in the series.
Young Oh ! Oh !
Screenplay
The Incident at Takanodai
Writer
Gokudo of Kamagasaki
Writer
Eighth installment in the "Gokudo" series. Depicts the activities of Shimamura Seikichi and his henchmen
The School Deviate Waru
Writer
Woman Mobsters
Screenplay
Bank robbers steal 30 million yen and try to elude the cops and escape with the cash. Of the three, only one manages to avoid capture. Yoko, a female accomplice, is tossed in a women's prison where she meets Yuki, and the two of them manage to escape. Their plan is meet up with the robber who avoided capture, get ahold of the cash, and get for away from the big city.
Wandering Ginza Butterfly: She-Cat Gambler
Screenplay
Meiko Kaji reprises her role as Nami, a vengeful female gang leader, in the second installment of this high-action series that casts a new actor -- martial arts legend Sonny Chiba -- in the role of Nami's loyal friend Ryuji. This time around, Nami is looking for Hoshiden, the man who murdered her father and shattered her once-hopeful childhood. But living under an assumed name, Hoshiden could stay hidden forever.
Delinquent Boss: Devour to the Bone
Screenplay
This is the Sixteenth film in the series. There were seventeen Wolves of the City films between 1968 & 1974, in the main aimed at shock-value & “pinku” soft-core with sex, nudity, violence, gunplay, & a lot of mainly pointless foolishness when the biker gang coopts racist or nazi imagery, inventing a non-existent youth culture void of morality…
Shōwa Gokudōshi
Screenplay
Delinquent Boss: Alley Dog Commando
Screenplay
This is the Fifteenth film in the series. There were seventeen Wolves of the City films between 1968 & 1974, in the main aimed at shock-value & “pinku” soft-core with sex, nudity, violence, gunplay, & a lot of mainly pointless foolishness when the biker gang coopts racist or nazi imagery, inventing a non-existent youth culture void of morality…
Wandering Ginza Butterfly
Screenplay
Gang leader Nami (cult film legend Meiko Kaji) kills a member of a yakuza group and goes away to prison. Upon her release three years later, she’s a shamed woman confined to living in the shadowy world of sex clubs and street gangs. She returns to the city to live with her uncle, a billiard-hall owner, and after befriending pimp and ne’er-do-well Ryuji (Tsunehiko Watase), she gets a job working at a hostess club in the chic Ginza neighborhood, where the expensive shops and neon lights conceal a dark world of crime and sexual slavery. But when a rival gang attempts to muscle in on the club, Nami becomes enmeshed in a violent struggle that forces her to wield a skilled pool cue to defend her uncle’s business, and eventually a short sword to wreak bloody vengeance upon her enemies.
Delinquent Street
Screenplay
Wolves of the City: First to Fight
Writer
Pinku from 1971.
Delinquent Boss: Smooth Talking, Good Fighting
Screenplay
This is the Twelfth film in the series. There were seventeen Wolves of the City films between 1968 & 1974, in the main aimed at shock-value & “pinku” soft-core with sex, nudity, violence, gunplay, & a lot of mainly pointless foolishness when the biker gang coopts racist or nazi imagery, inventing a non-existent youth culture void of morality…
The Bad Boss: Wholesale Roundup
Screenplay
This is the thirteenth film in the series.
Kigeki Toruko-buro Osho-sen
Writer
Wolves on Motorcycles
Writer
Hoodlum group helps fishermen against firm polluting their fishing ground.
Sex Comedy, Quick on the Trigger
Screenplay
Comedy about a car salesman who invents a condom against premature ejaculation.
The Sucker's Blunt Dagger
Screenplay
A man aspires to be a big boss but falls in love with a beautiful woman boss.
The Swindlers
Screenplay
Interesting fights between the "Capone Group" and "Jumbo Group".
Hooligans on Buggies
Screenplay
Rivalry between a hoodlum group and a gangster organization.
Kigeki Gyanburu Hisshôhô
Writer
Wolves of the City, Take Your Chance
Screenplay
The hoodlum group goes to a hot-spring resort town to earn money.
The Japan Derby Race
Screenplay
A story about a man who stakes his life on horse racing.
Wolves of the City, Money Hunters
Screenplay
The hoodlum group tries to help a little printing factory against gangsters.
A Yakuza Goes Home
Writer
Shimamura & Mineko return to Kamagasaki in Osaka. In their return Shimamura quickly finds himself defending a lady in distress. During the skirmish he bumps into his old buddies who turns him on to the "new" goings on in town, Shimamura is angered to discover a Chinese triad organization has overthrown their gang, a situation they must reverse. Now he and the old gang finds themselves putting their lives on the line defending the honor of the "Yakuza Way", the locals of Osaka, even Japan!!
Wolves of the City: Checkmate
Screenplay
This is the sixth film in the series. There were seventeen Wolves of the City films between 1968 & 1974, in the main aimed at shock-value & “pinku” soft-core with sex, nudity, violence, gunplay, & a lot of mainly pointless foolishness when the biker gang coopts racist or nazi imagery, inventing a non-existent youth culture void of morality…
Wolves of the City, Operation
Screenplay
Tokyo hoodlums travel to Osaka and enter into rivalry with the local gangsters.
Woman Boss: Chivalrous Fight
Screenplay
Sumi Muraoka, nicknamed "Sumi Banten", due to the fact that her back is decorated with a tattoo of the goddess Banten, the woman who heads the Banten Yakuza family. She comes into confrontation with a powerful of Yakuza group Mutsumi-kai, seeking to capture all power in their hands.
Team of Ruffians
Screenplay
Prisoners with special skills from all over Japan are sent to the battlefront on a mission.
Wolf Escort
Screenplay
Rivalry between a hoodlum group and gangster organization.
Daring Girls
Screenplay
Comedy about sexy chambermaids at a hot spring resort.
The Bad Boss 3
Screenplay
A story of rivalry between two gambling clans.
Yakuza on Foot
Screenplay
An Osaka gangster Shimamura just got married. His new bride, Mineko is also involved in drug trafficking. When she goes to China to make a deal, things get botched pretty badly. Shimamura must travel to save her and recoup his employers’ losses.
Brutal Tales of Chivalry 5: Man With The Karajishi Tattoo
Screenplay
Hidejuro is sent to prison after killing the boss of a rival family. After being released, he discovers that his family has scattered and he is taken in by a company of quarry workers, whose boss has a strict code of non-violence. When the rival family tries to take over the company and kills their boss, Hidejuro must choose between his promise of non-violence and his yakuza code of revenge...
Delinquent Boss: Wolves of the City
Writer
Kosaka Hiroshi is a small time swindler and the boss of a motorcycle gang in Shinjuku. Living only to make money, he never made the big time until he gets involved with a Yakuza's daughter. But when he gets involved in a scheme to blackmail a Yakuza gang and a land developer, he realizes he's gone way over his head…
The Yakuza Awaits
Screenplay
Forth film in the Gokudo series with Tomisaburô Wakayama
Return of the Outlaw
Screenplay
Second film of the Gokudo series starring Tomisaburô Wakayama
The Bad Boss
Screenplay
The first in what would become Toei's most successful, longest-running bosozoku film series. It lasted from 1968 till 1972 through sixteen films.
The Marked Man
Screenplay
A man from Osaka comes up to Tokyo to fight gangsterism.
Scoundrel
Screenplay
Shimamura is a violent street thug who joins the yakuza & is merciless & unscrupulous on his rise, lacking any sense of either duty or chivalry. When imprisoned, he is repeatedly transferred from one prison to another, because no one can handle him.
Enlisted Yakuza
Writer
It is the third film in the Gokudo series. In this episode, set in 1937, the main character of the series gang leader Shimamura is drafted into the military and fight in China.
North Sea Chivalry
Screenplay
Inosuke, a former gangster, and his friends struggle to make a living as simple fishermen in this tale of chivalry and friendship among yakuza in the northern regions.
The Chivalrous Life
Screenplay
Ryoma is a former military man who gets to know the leader of a yakuza group and begins to work with them, helping them defend themselves against other yakuza gangs.
Dissolution Rites
Screenplay
Sawaki is released from prison after serving eight years for murdering a rival gang leader in order to obtain the land rights to a landfill for the Kotaki clan and he discovers that the world has changed significantly in that time. The police have forced the disbanding of all yakuza groups in and around Tokyo and most of the former yakuza have moved on to legitimate jobs. Sawaki is disgusted that his yakuza brothers have abandoned their codes of honor and are abusing their newfound power in the legitimate business world to exploit the poor. Sawaki feels partly responsible for making them so powerful and enabling their corruption, so he decides to follow his traditional code of honor to save the residents of a small town where his former lover lives.
Wild Spirit
Screenplay
It has been 5 years since Eijiro Kikukawa of the Asakusa Kaminarimon family killed the head of the Suzaki family. Finally he gets out of prison and comes to the city of Odahama, where he had a mistress, Okei, whom he could not forget. He accidentally helped a man named Hanji from the Kurokane family and was received by the family as a guest. And soon Eijiro is involved in a showdown between the yakuza families.
Nerves for Victory
Screenplay
A young yakuza who respects obligation and humanity must face cruel and heartless turf wars leading to a fight to the death with his own brother.
Contemporary Tales of Chivalry: The Lone Wolf
Screenplay
Yakuza families clash over a lucrative fishery business.
Contemporary Tales of Chivalry 2
Screenplay
Hidejiro is a wandering yakuza with a ‘karashi botan’ (Chinese lion and peony) tattoo. Owing a favor to the Soda Family, he kills the boss of the rival Sakaki Family. When the Soda attacks the Sakaki and double-crosses him, with sword in hand, Hidejiro seeks brutal retribution.
Brutal Tales of Chivalry
Screenplay
After World War II, their town was a pile of rubble. Gennosuke, the second-generation boss of the Kamizu Group was upholding yakuza chivalry by keeping black-market and illegal items out of their open-air market. Taking advantage of the mess, Iwasa and his gang take hold of goods from the US military, black-market and controlled items in order to become the most powerful group in the Enko area. Iwasa has Gennosuke assassinated but before he dies, he names Shinji Terajima as his successor and makes him swear to carry on the family business and not seek revenge or use violence. Shinji tries to make his family’s marketplace a success, but with constant interruption and attacks from Iwasa’s gang, he can no longer keep his word to his former boss.
Invitation to the Enchanted Town
Screenplay
Live-action adaptation of Ko Kojima's manga "Sennin buraku".
Ghost of the Pearl Divers
Screenplay
Revenge of the Pearl Queen
Screenplay
Kizaki, an upstart at a trading company has one more assignment for the day before meeting his lovely girlfriend, Natsuki for a date. Little does he know that he's walking straight into a trap set up by his boss, Asanuma and his murderous right hand man. The next day Kizaki finds himself framed for the murder of the company president, and the robbing of the company safe. Natsuki innocently waves goodbye to her loved ones as the boat sails only find herself caught in Asanuma's evil scheming and the object of his lust. In a desperate attempt to escape, she falls to the watery depths. When we next see her she has washed ashore like a siren in the nude on a deserted island inhabited by five castaways who fight each other for her. She learns there's a rich wealth of clams underwater and eventually comes into a large fortune in pearls. Once rescued, she returns to Japan with revenge on her mind.