August 1995: Mikiya first meets Shiki in a white kimono during a snowing day. Later on, at the high school freshmen ceremony, Mikiya sees Shiki in the crowd and chases after her, introducing himself to her. But Shiki hides a big secret: A wave of bizarre murders occur around many loose ends, and no suspects. there are still many questions: Who to believe? Who is the murderer? What is the secret of Shiki? and especially: Who is SHIKI?
Unfortunately the movie The Garden of Sinners: A Study in Murder (Part 1) is not yet available on HBO Max.
| Editing | Manabu Kamino | Editor |
| Production | Hikaru Kondo | Producer |
| Production | Ryu Suzuki | Line Producer |
| Visual Effects | Tomonori Sudo | Character Designer |
| Production | Tomio Yoshioka | Executive Producer |
| Visual Effects | Kei Ajiki | Key Animation |
| Art | Haruka Katou | Background Designer |
| Art | Hiroki Matsumoto | Art Designer |
| Art | Izumi Ozawa | Background Designer |
| Writing | Kinoko Nasu | Novel |
| Directing | Takuya Nonaka | Director |
| Camera | Yuichi Terao | Director of Photography |
| Visual Effects | Seiji Matsuda | 3D Animator |
| Visual Effects | Shota Nishida | Compositing Artist |
| Production | Katsushi Oota | Production Supervisor |
| Camera | Seiji Matsuda | Director of Photography |
| Production | Masayuki Haryu | Producer |
| Visual Effects | Shinsuke Yasuda | Key Animation |
| Production | Wataru Matsuoka | Casting |
| Visual Effects | Shintaro Nakamura | 3D Director |
| Visual Effects | Shintaro Nakamura | Compositing Artist |
| Sound | Yoshikazu Iwanami | Sound Director |
| Art | Nobutaka Ike | Background Designer |
| Visual Effects | Ryota Nakae | 3D Animator |
| Visual Effects | Yoshihide Yuuzumi | Key Animation |
| Visual Effects | Masayuki Kunihiro | Key Animation |
| Visual Effects | Akio Shimotsukasa | Key Animation |
| Art | Nana Kondo | Background Designer |
| Visual Effects | Saki Matsubara | Compositing Artist |
| Visual Effects | Takeyoshi Omagari | Key Animation |
| Art | Junichi Higashi | Art Department Coordinator |
| Visual Effects | Ryunosuke Murakami | Key Animation |
| Art | Yukiko Shimada | Background Designer |
| Visual Effects | Takuro Takahashi | Animation Director |
| Production | Masuo Ueda | Executive Producer |
| Sound | Yasunori Mori | Music Producer |
| Visual Effects | Takuya Nonaka | Key Animation |
| Art | Satoru Hirayanagi | Background Designer |
| Visual Effects | Sae Yoshikawa | Compositing Artist |
| Visual Effects | Takuro Takahashi | Character Designer |
| Art | Nobutaka Ike | Art Direction |
| Visual Effects | Yuichi Terao | 3D Animator |
| Visual Effects | Takuro Takahashi | Key Animation |
| Art | Mari Sasagawa | Background Designer |
| Visual Effects | Emi Chiba | Color Designer |
| Visual Effects | Yuichi Terao | Compositing Artist |
| Art | Junichi Higashi | Background Designer |
| Art | Asami Saito | Background Designer |
| Sound | Yuki Kajiura | Original Music Composer |
| Writing | Masaki Hiramatsu | Screenplay |
| Art | Minami Usui | Background Designer |
| Visual Effects | Masumi Fujii | Key Animation |
| Visual Effects | Takashi Takeuchi | Character Designer |
| Visual Effects | Kazuyuki Matsubara | Key Animation |
| Visual Effects | Tomonori Sudo | Animation Director |
| Sound | Shizuo Kurahashi | Sound Effects |
| Visual Effects | Kiyoshi Tateishi | Key Animation |
| Art | Hiromi Shirahase | Background Designer |
| Visual Effects | Shintaro Nakamura | 3D Animator |
| Production | Takashi Takeuchi | Producer |
| Visual Effects | Masaru Kimura | Key Animation |
| Art | Sachie Endou | Background Designer |
| Visual Effects | Seiji Matsuda | Compositing Artist |
| Visual Effects | Satoshi Takahashi | Key Animation |
| Visual Effects | Shunya Kikuchi | Key Animation |
| Visual Effects | Tamotsu Ogawa | Key Animation |
| Art | Takafumi Nishima | Background Designer |
| Production | Atsuhiro Iwakami | Producer |
| Visual Effects | Takahiro Miura | Key Animation |
| Art | Koji Eto | Background Designer |
| Visual Effects | Ryota Nakae | Compositing Artist |
| Visual Effects | Kumiko Ohori | Animation |
