The Samurai Mystery That Became Kurosawa’s Biggest Hit

Kiyoshi Kurosawa’s first samurai film, The Samurai and the Prisoner, is also the first of his movies to pass ¥1 billion in Japan. The 147-minute castle mystery opened June 19, 2026, after a Cannes Premiere screening on May 19, and it did that business with the swords mostly off-screen.

It is a locked-room case set inside Arioka Castle in the winter of 1578, taken from Honobu Yonezawa’s Naoki Prize novel Kokurōjō, and it asked paying crowds to sit with talk, weather, and doubt while a war waited outside the walls.

A 147-Minute Siege With Almost No Swordplay

Lord Araki Murashige, played by Masahiro Motoki, has broken with Oda Nobunaga and shut himself inside Arioka. Oda sends the strategist Kuroda Kanbei, played by Masaki Suda, to talk him down. Murashige answers by locking Kanbei in the dungeon, then has to walk back down those stairs when a child hostage named Jinen is found dead and no clean story will hold.

Most of the killing stays off camera. The camera stays on rooms, faces, and the slow inspection of heads brought back from the field, which is as close as the film comes to a battle scene. A line at the midpoint asks, “What is the world coming to? Nothing makes sense anymore.” Another asks whether a war can be won without killing.

Yuriko Yoshitaka plays Murashige’s wife, Chiyoho. Munetaka Aoki, Ryota Miyadate, Tasuku Emoto, and Joe Odagiri fill the court that starts eating itself. Bando Shingo appears as Nobunaga. Yasuyuki Sasaki shot the film in the old 1.66:1 frame, and Yoshihiro Hanno wrote the score. Shochiku produced it with TBS Pictures and released it in Japan; Janus Films took the United States.

Kurosawa Waited Until 70 for His First Jidaigeki

The Cannes festival, introducing the film in its Premiere section, called Kokurōjō the first samurai film in his career after three features in 2024 alone, Chime, Serpent’s Path, and Cloud. He is 70. He has already won Un Certain Regard for Tokyo Sonata and best director for Journey to the Shore, and he is still the man English-language copy tags as a horror specialist because of Cure and Pulse.

He has said a producer handed him Yonezawa’s book at the same moment he already wanted to film Murashige. The pull was not valor. History treats Murashige as the lord who ran, and that is the man Kurosawa wanted.

After a period of turmoil, he flees the castle that he is based in and is typically talked about as a very cowardly samurai, a cowardly figure that acts not very much like samurai typically would. And that cowardly character is precisely why I became interested in him.

Kiyoshi Kurosawa, director, Cannes interview

He also said Murashige is trying to throw off bushido even if the price is the word coward, and that Motoki and Suda turned the dungeon scenes into “a great tug of war” that felt, on set, like actual conflict. He shot much of the film on Shochiku’s historical stages and at temples and castles around Kyoto, and he compared the work to mounting a play because the windows could not open onto a real city.

THE NOVEL’S PRIZE SWEEP

• The book: Yonezawa’s Kokurōjō appeared from Kadokawa in June 2021 and later reached about 600,000 copies in Japan.
• The big prizes: It took the 166th Naoki Prize and Kadokawa’s 12th Fūtarō Yamada Award.
• The rankings: For 2022 it hit No. 1 in Kono Mystery ga Sugoi!, Mystery ga Yomitai!, Shūkan Bunshun Mystery Best 10, and Honkaku Mystery Best 10, the first title to top all four.
• The English edition: Yen Press published a 384-page English edition of the novel on July 18, 2023, translated by Giuseppe di Martino, after first announcing it as Black Dungeon Castle.

That pile of prizes is why Shochiku could sell a 147-minute talker as a popular event rather than a specialist chore. Kurosawa still framed the movie as a nod to 1950s period drama, naming Akira Kurosawa’s Throne of Blood and Kenji Mizoguchi’s The 47 Ronin, and he later introduced Throne of Blood in New York while the new film was in theaters. He is not related to Akira Kurosawa.

The Warlord Who Fled His Own Castle

The mystery is invented. The cage is not. In late 1578 Murashige, Nobunaga’s lord in Settsu, rebelled and held Arioka Castle, in present-day Itami. Toyotomi Hideyoshi sent Kuroda Yoshitaka, the historical Kanbei, to talk him back. Murashige jailed him instead and sat out a yearlong siege of Arioka Castle.

THE ARIOKA SIEGE

1. Late 1578: Murashige rebels and shuts the castle; Kanbei arrives as an envoy and is thrown in the dungeon.
2. 1579: The siege drags on. Close aides defect, including Takayama Ukon, and the food problem becomes the war.
3. October 2, 1579: Murashige slips out of Arioka alone and moves toward Amagasaki, then Hanakuma, and finally the Mōri.
4. January 9, 1580: After the castle falls, 122 court ladies are killed at Nanamatsu; period chronicles also describe more than 500 people burned alive on Nobunaga’s order.

Murashige lived. He later became a tea master, which is the ending history already wrote for him, three years before Nobunaga died in the Honnō-ji Incident of 1582. Motoki, 60, has said he played a commander who had hit the limit of a world that only knew how to keep killing. That is the film’s real subject, and it is why the title character is famous for leaving.

What Happens Inside Arioka’s Four Seasons?

The script follows the novel’s four chapters, each tied to a season, starting in winter 1578. Jinen, kept as a hostage after his father defects, wants a sword death that his Shinshū faith can bless; Murashige refuses him a crucifixion and still loses him. From there the castle produces a string of crimes that look impossible inside a closed fortress, and the lord carries testimony down to the man he chained.

Kanbei recites old verse, withholds what he knows, and slowly becomes the only person Murashige can think with. Trust never quite arrives. The pair keep score in a dark room while retainers upstairs argue over heads, a stolen tea urn, a burned church, and whether reinforcements from the Mōri will ever show. The killer, when the film finally names one, is not the person a standard period mystery would hand you.

Some Cannes notices found the talk heavy and the staging close to theater. Critic Brian Tallerico still gave the film four out of four stars. Rotten Tomatoes later listed a 97 percent score from 79 reviews, with an average of 8 out of 10; Metacritic logged 83 from 21 critics. The movie rewards a second pass because the clues sit in the weather and the etiquette, not in a sword flourish you can screenshot.

Japan Paid ¥1 Billion to Watch Them Talk

Shochiku opened the film on June 19, 2026. The first three days sold 196,388 tickets for ¥274.1 million, good for No. 1 among Japanese titles that weekend and No. 2 overall. On July 22 the studio said that by July 20, 31 days in, the film had reached ¥1.035 billion and 755,848 tickets, the first Kurosawa title to clear ¥1 billion, well past his prior high of ¥630 million for Creepy in 2016.

JAPAN AND U.S. GROSSES

Shochiku said the house skewed from the 20s through the 60s and ran strong with women. That mix matches the way the Japanese campaign was built. The studio’s first poster drop in January did not play as a cinephile leak so much as a pop booking, and the loudest early noise sat on the presence of Ryota Miyadate in a period role, beside Motoki and Suda. A weekday-strong run is what you get when older ticket buyers and idol fans share a castle mystery.

https://x.com/kokurojo_movie/status/2013734067905212803

Motoki thanked audiences for a ¥1 billion period film, which he called a rare result, and joked that Murashige himself would be surprised. The joke lands because the historical lord is the man textbooks still scold. Japan paid to watch him think.

Seventy-Eight Screens and a $716,901 Ceiling

Janus Films bought U.S. rights in April 2026 and opened The Samurai and the Prisoner on July 31 in three theaters for $64,474, about $21,491 per screen. The run widened to 47 theaters in week two and to a ceiling of 78 in week three, then slid to 36 screens by the weekend of August 28. The U.S. total is $716,901. Box Office Mojo’s worldwide gross of $7,010,111 is almost entirely the Japanese play, with a trickle in Russia and later dates still ahead.

https://x.com/janusfilms/status/2070161404632404447

That is the split inside the same movie. At home it was a Shochiku event with idol poster wattage and a director’s first ¥1 billion. In the United States it stayed an art-house booking for the director of Cure, even as Kurosawa argued that retreat, not charge, might be a kind of paradise, mapping the old Buddhist line “Advance to paradise, retreat into hell” onto a present tense of profit. Spain is dated October 23, 2026. France gets the film on January 27, 2027 under the title Le Château d’Arioka. Shochiku will issue Blu-ray and DVD on November 6, 2026, including a black-and-white cut of the feature, which is a neat way to admit the 1950s debt he kept naming.

Frequently Asked Questions

Is Kiyoshi Kurosawa Related to Akira Kurosawa?

No. Kiyoshi Kurosawa was born in Kobe in 1955, studied sociology at Rikkyo University, and worked as an assistant under Kazuhiko Hasegawa and Shinji Somai before the horror films that made his name. He has said he wanted this movie to send viewers back to Akira Kurosawa and Mizoguchi, which is homage, not kinship.

What Does the Japanese Title Kokurōjō Mean?

黒牢城 reads as Kokurōjō and turns, word by word, into black prison castle, which is why Yen Press first listed the book as Black Dungeon Castle before settling on The Samurai and the Prisoner. The English title names the two men; the Japanese title names the building that holds them.

Where Was The Samurai and the Prisoner Filmed?

Interiors were built on Shochiku’s historical sets. Location work ran about a month and a half from October 2025 across Himeji Castle, Akashi Castle, Sasayama Castle, Iga Ueno Castle, Hikone Castle, and the Kyoto temples Tōfuku-ji and Manpuku-ji, several of them national treasures.

How Long Is Kuroda Kanbei’s Imprisonment in the Real Record?

Hideyoshi sent Kuroda Yoshitaka to Arioka as a friend of Murashige’s, hoping to end the revolt with a conversation. Murashige arrested him and held him in a dungeon for roughly the length of the siege, about a year, a captivity so complete that Oda’s side treated Kanbei’s silence as possible defection and moved against his family.