人間標本

2025 - 2025

Episode 1

19th December 2025

Episode 1

The bodies of young boys were found in six cases. Shiro Sakaki, a professor considered Japan's leading expert on butterflies, turns himself in. He has recorded everything in a report published on the Internet, from his motive to the process of his creation. The interrogation proceeds as if tracing his distorted record, leading to a sensational suspense story where beauty and madness intertwine.

Episode 2

19th December 2025

Episode 2

Shiro starts to express his artistic viewpoint during interrogation. The art camp is canceled when Rumi falls ill. Shiro goes to the mountain to take the boys home. In the warehouse, there are six cases on display. Shiro feels emotional upheaval due to his expectations toward Itaru. As the detective investigates further, a big mystery arises, and the interrogation gets to the crux of his story.

Episode 3

19th December 2025

Episode 3

After creating five specimens, Shiro's final target is his beloved son, Itaru. Despite the memories with Itaru, Shiro only sees his son as a butterfly. Shiro makes up his mind to create his last specimen. At last, the report named "Human Specimen by Shiro Sakaki" seems to have ended. However, the letters in the report start to get distorted, and the story shifts to a new perspective.

Episode 4

19th December 2025

Episode 4

Itaru stays home while Shiro leaves for an observation survey of butterflies. Itaru stares at his father's specimens and invites his friends over. He starts recording his observations in his own report. When Shiro returns, they have dinner and share memories. Shiro opens his son's computer with a strange feeling about the specimens in his room.Three years later, Shiro receives a letter from Anna.

Episode 5

19th December 2025

Episode 5

Anna seemed proud, but she longed for a successor while looking at her mother, in the spotlight for her art book. After the art camp is canceled, Anna invites the boys to the mountain house. She insists she made the Human Specimen. Shiro understands Itaru's hopes to become his father's specimen. The truth of Itaru's death and the mystery of Anna's confession will be unraveled.

Top Cast

Hidetoshi Nishijima•Somegoro Ichikawa•Rie Miyazawa

Drama Mystery Crime

Professor Shiro Sakaki, a butterfly researcher, confesses to turning six young boys, including his own son Itaru, into "human specimens."

Watch Providers 🇬🇧

Amazon Prime Video

Amazon Prime Video with Ads

Production Companies

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Full Cast

Hidetoshi Nishijima

Professor Shiro Sakaki

Somegoro Ichikawa

Itaru Sakaki

Rie Miyazawa

Rumi Ichinose

Aoi Ito

Anna Ichinose

Towa Araki

Toru Shirase

Jyutaro Yamanaka

Hikaru Akabane

Kodai Kurosaki

Sho Ishioka

Leo Matsumoto

Ao Fukazawa

Ikuho Akiya

Dai Kuroiwa

Full Crew

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Asami Kiyokawa

Art Direction

Kanae Minato

Novel

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Yaffle

Original Music Composer

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Atsuhiro Nabeshima

Director of Photography

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Rikimaru Sakuragi

Original Music Composer

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