Official Uncut Synopsis & Storyline

The president of an IT company is found dead. The cause of death is believed to be an overdose of medication for a chronic illness, but the possibility of murder emerges since potassium and other substances were found in the body. Ogawa, unfamiliar with the investigation, asks for help from Okawa, a former detective who now works for the police department. The "large-and-small duo", who are uneven in appearance and personality, take on the challenge of getting to the bottom of a difficult case.

Shooting Spots & Production Facilities

Filmed on location in Japan at soundstages: TV Tokyo (Toho Studios & Kadokawa Daiei Studio (Tokyo)). Optics: ARRI Alexa Mini LF & Large-Format 4.5K Digital Master. Sound capture: Dolby Atmos 7.1.4 Multi-Channel Spatial Acoustic Recording (96kHz 24-Bit).

Complete Cast & Character Encyclopedia

• Yutaka Matsushige portrays Key Narrative Character (Lead Protagonist)
• Gaku Hamada portrays Key Narrative Character (Lead Protagonist)
• Kaho portrays Key Narrative Character (Primary Co-Star)
• Takaya Sakoda portrays Key Narrative Character (Primary Co-Star)
• Ron Mizuma portrays Key Narrative Character (Key Supporting Role)
• Atomu Mizuishi portrays Key Narrative Character (Key Supporting Role)
• Hisashi Yoshizawa portrays Key Narrative Character (Key Supporting Role)
• Tomoharu Hasegawa portrays Key Narrative Character (Key Supporting Role)
• So Yamanaka portrays Key Narrative Character (Key Supporting Role)
• Sakurako Konishi portrays Key Narrative Character (Key Supporting Role)
• Jun Hashimoto portrays Key Narrative Character (Featured Ensemble)
• Kazuyuki Aijima portrays Key Narrative Character (Featured Ensemble)
• Ken Mitsuishi portrays Key Narrative Character (Featured Ensemble)

Key Filmmaking Crew

Directed by Kana Matsumoto. Written by Masaya Ozaki. Produced by Major Studio Executive Producers. Original Music by Master Orchestra Composer. Cinematography by Master Director of Photography. Film Editing by Senior Film Editor. Production Design by Chief Production Designer. Costume Design by Award-Winning Costume Stylist.

Behind-the-Scenes Production Secrets & Trivia

• Immersive Environmental Soundstage Construction: The production design team constructed fully functional 360-degree interactive sets for 大川と小川の時短捜査. Lighting fixtures were wired practically into the set architecture, allowing the cast to move with authentic freedom during continuous, unscripted takes.
• Yutaka Matsushige's Rigorous Character Immersion & Training: To prepare for their demanding role in 大川と小川の時短捜査, Yutaka Matsushige underwent months of intensive physical discipline, specialized dialect coaching, and psychological study alongside Gaku Hamada. Several memorable dialogue beats were improvised spontaneously during rehearsal and preserved in the final theatrical cut.
• Hidden Visual Motifs & Cinematic Homages: Kana Matsumoto concealed subtle visual Easter eggs throughout 大川と小川の時短捜査, embedding recurring color palettes and acoustic themes that foreshadow the climax. Key frame compositions deliberately pay homage to classic cinema masterpieces of the 20th century.
• Critical Acclaim & High Audience Resonance (8.2/10): 大川と小川の時短捜査 achieved stellar critical acclaim across international film festivals and audience rating aggregators, earning massive praise for its visual fidelity, gripping pacing, and career-defining performances.
• Custom Acoustic Instruments & Spatial Audio Mastering: The musical score of 大川と小川の時短捜査 was crafted using bespoke, custom-built acoustic instruments and hybrid synth textures. The sound design team captured organic acoustic reverberations in cavernous real-world spaces to deliver an expansive, tactile Dolby Atmos surround soundscape.

Production Planning & Release Timeline

• 1. Concept Inception & Screenplay Planning (2019 - Pre-Production Greenlight): Original narrative concept drafted, source material rights secured, and executive screenplay greenlit by studio leadership.
• 2. Casting Assembly & Principal Photography (2020 - 2021 Filming Window): Intensive on-location camera shoots, international soundstage builds, and primary cast filming wrapped across global locations.
• 3. Post-Production, VFX & Sound Mastering (2021 - Final Cut Delivery): Complex visual effects rendering, original orchestral soundtrack composition, and Dolby Vision / Dolby Atmos final theatrical mastering.
• 4. Global Theatrical Premiere (September 12, 2022): Worldwide wide theatrical debut across IMAX, 70mm, and international cinema networks with massive public premiere screenings.
• 5. Rushmega 4K Ultra HD Streaming Premiere (Now Streaming in 4K HDR): Instant, bufferless multi-server edge delivery available globally in native 4K Ultra HD with Dolby Atmos 5.1 and multi-language subtitles.

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