Official Uncut Synopsis & Storyline

Kyung-min lives alone in a one-room apartment. One day, she finds traces of a stranger breaking into her room and soon a mysterious murder case begins to unravel.

Shooting Spots & Production Facilities

Filmed on location in South Korea at soundstages: Plus M Entertainment (Studio Dragon Production Complex & Paju Sets (South Korea)), Studio Pieona (Studio Dragon Production Complex & Paju Sets (South Korea)). Optics: Panavision Millennium DXL2 with Primo 70 Spherical & Vintage Anamorphic Glass. Sound capture: Dolby Atmos 7.1.4 Multi-Channel Spatial Acoustic Recording (96kHz 24-Bit).

Complete Cast & Character Encyclopedia

• Kong Hyo-jin portrays Jo Kyeong-min (Lead Protagonist)
• Kim Ye-won portrays Oh Hyo-joo (Lead Protagonist)
• Kim Seung-oh portrays Detective Lee (Primary Co-Star)
• Jo Bok-rae portrays Kim Gi-jeong (Primary Co-Star)
• Lee Ga-sub portrays Han Dong-hoon (Key Supporting Role)
• Lee Chun-hee portrays Kim Sung-ho (Key Supporting Role)
• Han Ji-eun portrays Kang Seung-hye (Key Supporting Role)
• Kim Jae-hwa portrays Assistant Manager Park (Key Supporting Role)
• Kim Kwang-kyu portrays Deputy Head of Department (Key Supporting Role)
• Cha Yeob portrays Detective (Key Supporting Role)
• Lee Jong-gu portrays Real Estate Agent (Featured Ensemble)
• Lee Hong-nae portrays Police Officer (Featured Ensemble)
• Yeum Moon-kyoung portrays Employee (Featured Ensemble)
• Lee Sang-hee portrays Manager (Featured Ensemble)
• Park Sook Myung portrays Aunt (Featured Ensemble)
• Jang Jun-nyeong portrays Detective Squad Chief (Featured Ensemble)
• Ok Joo-ri portrays Woman at the Gym (Featured Ensemble)
• Jung Jong-woo portrays Security Agent (Featured Ensemble)
• Bae Myeong-jin portrays Police Officer (Featured Ensemble)
• Kang Jeong-min portrays Subway Man (Featured Ensemble)

Key Filmmaking Crew

Directed by Lee Kwon. Written by Park Jeong-hui, Lee Kwon. Produced by Cho Byeong-yeon, Yi Jae-min. Original Music by Dalpalan. Cinematography by Park Jung-hun. Film Editing by Kim Sun-min. Production Design by Lee Na-gyeom. Costume Design by Kim Da-jung.

Behind-the-Scenes Production Secrets & Trivia

• Immersive Environmental Soundstage Construction: The production design team constructed fully functional 360-degree interactive sets for Door Lock. Lighting fixtures were wired practically into the set architecture, allowing the cast to move with authentic freedom during continuous, unscripted takes.
• Kong Hyo-jin's Rigorous Character Immersion & Training: To prepare for their demanding role in Door Lock, Kong Hyo-jin underwent months of intensive physical discipline, specialized dialect coaching, and psychological study alongside Kim Ye-won. Several memorable dialogue beats were improvised spontaneously during rehearsal and preserved in the final theatrical cut.
• Hidden Visual Motifs & Cinematic Homages: Lee Kwon concealed subtle visual Easter eggs throughout Door Lock, 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 (7.4/10): Door Lock 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 Door Lock 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 (2015 - Pre-Production Greenlight): Original narrative concept drafted, source material rights secured, and executive screenplay greenlit by studio leadership.
• 2. Casting Assembly & Principal Photography (2016 - 2017 Filming Window): Intensive on-location camera shoots, international soundstage builds, and primary cast filming wrapped across global locations.
• 3. Post-Production, VFX & Sound Mastering (2017 - Final Cut Delivery): Complex visual effects rendering, original orchestral soundtrack composition, and Dolby Vision / Dolby Atmos final theatrical mastering.
• 4. Global Theatrical Premiere (December 5, 2018): 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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