Episode 1
Episode 1
27m7.5 / 10
Keith rejoins the RIS just in time to work a brutal double murder involving "Killer B." Then an unknown group steals a military vehicle for a rampage.
Episode credits
Written by Katsunari Ishida
TV series
B: The Beginning
2018TV-MA2 seasons7.6 / 10
Genius investigator Keith Flick rejoins the royal police force just as serial killer "B" emerges. Mysterious youth Koku may be an ally, or a target.
Streaming, rental and purchase options
Where to watch in United States
Checked Sep 2, 2026
B: The Beginning is available to stream on Netflix in United States. You can also buy it from Apple TV and Fandango at Home. Use the direct links below to open the provider.
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Synopsis
Genius investigator Keith Flick rejoins the royal police force just as serial killer "B" emerges. Mysterious youth Koku may be an ally, or a target.
Season 1 episodes
Choose an episode, then use the watch options above for the show.
Where to watch B: The Beginning
Episode 2
Episode 2
25m7.7 / 10
The RIS investigates a death that appears to be linked to Killer B, though Keith disagrees. Another body leads them to stake out a high-powered party.
Episode credits
Directed by Kenichi Matsuzawa
Episode 3
Episode 3
25m7.7 / 10
Kaela battles the hackers as the poison gas release ticks closer. Keith drags Boris on a chase outside the city, pursuing Koku and one of the gang.
Episode credits
Directed by Toshiya Niidome
Episode 4
Episode 4
25m7.7 / 10
Koku and Keith both pay visits to the Royal Library. Afterward, Lily heads to Keith's apartment to discuss her thoughts on the Killer B case.
Episode credits
Directed by Takahiro Kawakoshi
Episode 5
Episode 5
26m7.7 / 10
The team members grapple with the attack on one of their own, and the fact that there must be a traitor on the inside. Koku realizes who Canopus is.
Episode credits
Directed by Yoshiko Okuda
Episode 6
Episode 6
25m7.7 / 10
After confronting Keith on the roof of the hospital, Koku agrees to meet him at a temple the next day. Keith is declared a murder suspect.
Where to watch B: The Beginning
Episode 7
Episode 7
26m7.7 / 10
Minatsuki gives the OK for the others to attack Koku, but Keith intervenes to protect him. The RIS receives an ultimatum.
Episode credits
Directed by Takahiro Kawakoshi
Episode 8
Episode 8
27m7.7 / 10
Eric implores Keith to return to the RIS, then suspends Lily in an effort to track Keith down. Minatsuki sends Takeru after Koku.
Where to watch B: The Beginning
Episode 9
Episode 9
26m7.7 / 10
Keith turns himself in and the RIS decides to spend the few remaining hours laying a trap for the suspected head of Market Maker, using Lily as bait.
Where to watch B: The Beginning
Episode 10
Episode 10
27m7.5 / 10
Koku searches for the zeppelin containing Market Maker and Yuna. Meanwhile, Keith, Eric and Kaela frantically search for Gilbert and Lily.
Where to watch B: The Beginning
Episode 11
Episode 11
26m7.7 / 10
Keith sets off in pursuit of Gilbert once more. Koku finds the zeppelin and Minatsuki, but Laica escapes with Yuna in accordance with the prophecy.
Where to watch B: The Beginning
Episode 12
Episode 12
28m6.0 / 10finale
The RIS races to the scene, while Keith confronts Gilbert at the old Jaula Blanca facility. Koku fights Laica for his and Yuna's survival.
Episode credits
Directed by Kazuto Nakazawa
Episode information updated Sep 17, 2026
More about B: The Beginning
Cast
Asami SetoLily Hoshina (voice)
Hiroaki HirataKeith Kazama Flick (voice)
Yuki KajiKokuu (voice)
Minoru InabaMeyer Boris (voice)
Toshiyuki ToyonagaBrandon Brian (voice)
Hiroki TouchiEric Toga (voice)
Toshiyuki MorikawaRoss Gilbert (voice)
Mitsuki SaigaIzanami (voice)Credits
- Written by
- Katsunari Ishida
Production details
- Status
- Ended
- Series type
- Scripted
- Episodes
- 18
- Original language
- Japanese
Networks & production
Netflix
Production I.GJapan
NetflixJapan
Production I.GUnited States
Themes
alternative presentanimeanti herobrainwashingdark fantasydetectiveimmortalitymassacre
