Eight years after the battle for the Book of Omniscience, the peaceful lives of Touma, Rintaro, Mei and Kento are troubled by a mysterious new Falchion who can seemingly erase people from existence altogether!
Unfortunately the movie Kamen Rider Saber: Trio of Deep Sin is not yet available on HBO Max.
| Directing | Kazuya Kamihoriuchi | Director |
| Production | Masayuki Yamada | Producer |
| Writing | Takuro Fukuda | Screenplay |
| Editing | Shokichi Kaneda | Editor |
| Production | Kazuo Kato | Executive Producer |
| Camera | 上赤寿一 | Director of Photography |
| Art | Shuichi Oshima | Art Direction |
| Production | Hiroshi Michiki | Line Producer |
| Visual Effects | Hideki Tajima | Character Designer |
| Production | Kazuhiro Takahashi | Producer |
| Sound | Asuka Kawazu | Theme Song Performance |
| Sound | Shuichiro Naito | Theme Song Performance |
| Sound | Takaya Yamaguchi | Theme Song Performance |
| Sound | Ryou Aoki | Theme Song Performance |
| Directing | Jun Watanabe | Action Director |
| Sound | Kosuke Yamashita | Music |
