Series synopsis
The Clock Mansion Murders, also known as 時計館の殺人 is a Japanese drama mystery television series that premiered on Hulu on February 27, 2026. It ended on March 20, 2026. It stars Tomoya Oku, Munetaka Aoki, Takashi Yamanaka and Hiroki Konno.
In 1989, a rookie editor visits a mysterious mansion for a séance, only for a psychic to vanish and a string of murders to begin. As a young mystery writer joins the investigation, dark secrets hidden in a cryptic poem left by the mansion’s owner start to unravel.
Premise
In 1989, a rookie editor visits a mysterious mansion for a séance, only for a psychic to vanish and a string of murders to begin. As a young mystery writer joins the investigation, dark secrets hidden in a cryptic poem left by the mansion’s owner start to unravel.
Cast and characters
Leading cast
- Tomoya Oku as Takaaki Kawaminami
- Munetaka Aoki as Kiyoshi Shimada
- Takashi Yamanaka
- Hiroki Konno
- Yuka Kouri
- Hiroki Okabe
- Ryoka Yoshida
- Yuya Watanabe
Supporting cast
Episodes
This series spans 2 seasons with 10 episodes.
| Season | Episodes | First aired | Last aired |
|---|---|---|---|
| Season 0 | 2 | ||
| Season 1 | 8 | February 27, 2026 | March 20, 2026 |
| Episode | Title | Air date |
|---|---|---|
| 1 | Episode 1 | |
| 2 | Episode 2 |
| Episode | Title | Air date |
|---|---|---|
| 1 |
Episode 1 Kōnan Takaaki, a rookie editor, visits a mysterious mansion in Kamakura with a research team to cover a feature for an occult magazine about the rumored ghosts of the Clock Tower. Designed by the famed architect Nakamura Seiji, the eerie mansion becomes the site of a three-day séance led by a young psychic. But strange events soon begin to unfold inside the isolated building. |
February 27, 2026 |
| 2 |
Episode 2 After hearing about the Clock Tower, Shikatani visits the mansion with a student named Fukunishi. Meanwhile, during the séance, one of the participants suddenly disappears and bloodstains are discovered in the room. As night falls, a masked figure attacks the group trapped inside the building. |
February 27, 2026 |
| 3 |
Episode 3 Shikatani and Fukunishi return to the Clock Tower to investigate a mysterious poem left behind by the mansion’s former owner. As they uncover dark stories about the house’s past, another participant is murdered inside the locked building. With no way out, the survivors face the terror of a killer hiding among them. |
February 27, 2026 |
Production
Release
| Original network/platform | Hulu |
|---|---|
| First aired | February 27, 2026 |
| Last aired | March 20, 2026 |
| Runtime | 60 minutes |
| Status | ended |