"The Decagon House Murders" Blu-ray [First production limited edition]

[Blu-ray version]
2024 / Japan / Color / 240 minutes main story + 63 minutes bonus footage / 16:9 1080i High Definition / 2 layers / Audio: Original Japanese Linear PCM 2ch Stereo / Subtitles: None / 5 episodes / 2 discs

Bonus footage
~Behind the Scenes of "The Decagon House Murders"~ [Special Content]
・The Decagon House Studio Tour & Gangnam Apartment
・Special roundtable discussion with Miss Research Club members
・Behind that one line
 
Bonus Included
Special interview with original author Yukito Ayatsuji and director Teru Uchikata [Special booklet]

*Contents and names may change without notice.

[removed]
Tomoya Oku and Munetaka Aoki
Ayumi Mochizuki, Neru Nagahama, Yuki Imai, Kosuke Suzuki, Daito Kobayashi, Reia Yonekura, Rukiya, Kazusumi Kikuchi, Mari Hamada, Tetsuhiro Ikeda, Yasuyuki Maekawa, Aoba Kawai, Tamiyo Kusakari, Akihiro Kakuta, Toru Nakamura

＜Staff＞
Original story: "The Decagon House Murders" by Yukito Ayatsuji (Kodansha Bunko)
Director: Akira Uchikata
Screenplay: Hiroyuki Yatsu, Madoka Hayano, Kaori Fujii
Music: Harumi Fuki
Theme song: "Tekke Boruto" Zutto Mayonaka de Iinoni. (EMI Records / UNIVERSAL MUSIC)
Producers: Akira Uchikata, Setsuko Uchimaru, Shun Kinoshita / Keigo Nakamura, Masahiko Shibuya
Chief Producer: Jun Ishio Masataka Katsue
Executive Producers: Akihiro Kawabe and Kazushi Nagasawa
Produced by: Tadafumi Shimomura
Production cooperation: Uchikata Teru Office, Tohan Planning, Imajin
Produced by: Nippon Television Network

[Synopsis]
Tsunojima is home to the Decagonal House, a strange mansion with a decagonal appearance.
In 1986, Nakamura Seiji, the genius architect who built the Decagonal House, died mysteriously in the burnt-down main building, the Aoyashiki.
Six months later, seven men and women from the K University Mystery Research Club visit the deserted island of Tsunoshima for a training camp.
Meanwhile, across the sea on the mainland, Kawaminami Takaaki, a former member of the Miss Research Club, receives a letter from Nakamura Seiji, who was supposed to be dead.
[removed] and .
"It doesn't seem like a coincidence." As Konan continues his investigation, he meets a man named Shimada Kiyoshi and they begin to act together.
Meanwhile, at the Decagon House, one of the Miss Research Club members is murdered by someone. "Who could the culprit be?" The members become suspicious and start to suspect each other... It will be a week before they can leave the isolated island of Tsunoshima.
What is the shocking conclusion beyond imagination that arises from these two stories?

Product code: TCBD-1811
Release date: October 3, 2025
Publisher: HJ Holdings
Distributor: TC Entertainment
©Yukito Ayatsuji/Kodansha ©NTV

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