The Dinner Table Detective There Is No Such Thing as a Completely Locked Room: File 2/Please Don't Drown in This River: File 1 (Season 1, Episode 8)
TV Episode | Animation, Comedy, Drama

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The Dinner Table Detective

There Is No Such Thing as a Completely Locked Room: File 2/Please Don't Drown in This River: File 1 (Season 1, Episode 8)

TV Episode | Animation, Comedy, Drama

Kageyama locates a secret passageway to solve the locked-room murder mystery. Upon encountering a deranged woman wielding a knife, Reiko is left with nowhere to escape. On the next case, a white-suited journalist's body is discovered.

Edit Released

Updated May 23, 2025

Release date

May 23, 2025 (Japan)

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Cast	+ Add Cast
21 cast members

Name	Known for
Megan Berrisford Ayaka Kiryuin (voice) (version: English) Ayaka Kiryuin (voice) (version: English) See fewer	Darby and the Dead (2022)
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Kana Hanazawa Reiko Hosho (voice) Reiko Hosho (voice) See fewer	The Garden of Words (2013)
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Shôhei Kajikawa Newbie Desk (voice) Newbie Desk (voice) See fewer	Like a Dragon: Infinite Wealth (2024)
Jock Kleynhans Kageyama (voice) (version: English) Kageyama (voice) (version: English) See fewer	Huntington (II)
Celeste Loots Reiko Hosho (voice) (version: English) Reiko Hosho (voice) (version: English) See fewer	One Piece (2023)
Nicole Malcomson Kaori Miyamoto (voice) (version: English) Kaori Miyamoto (voice) (version: English) See fewer	The Dinner Table Detective (2025)
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Ken Uo Keizan Matsushita (voice) Keizan Matsushita (voice) See fewer	Alita: Battle Angel (2019)
Conradie van Heerden Kyoichiro Kazamatsuri (voice) (version: English) Kyoichiro Kazamatsuri (voice) (version: English) See fewer	Resident Evil (2022)
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Sayaka Ôhara Shiho Kambara (voice) Shiho Kambara (voice) See fewer	Your Name. (2016)