Some Detective (2026): Cast, Story and Release Details

Prepared by Movies Dock Editorial

Some Detective follows Hye-joo, a writer attempting her first detective novel, after a call from her ex-husband’s mother sends her on an unfamiliar journey. As she crosses paths with people connected to her past and present, her original purpose gradually gives way to unexpected encounters.

Some Detective is a South Korean drama about Hye-joo, a writer struggling with her first attempt at a detective novel. An unexpected phone call from her ex-husband Tae-jae’s mother gives her a reason to leave her routine behind.

What begins as a specific errand develops into a series of encounters involving people from Hye-joo’s past and relationships in her present. The 2026 film is directed by Kim Mi-young and has a runtime of 85 minutes.

Some Detective movie details

Story without spoilers

Hye-joo is trying to write a detective novel, but the project is not progressing as she hoped. Her circumstances change when Tae-jae’s mother calls, prompting her to begin an unfamiliar journey.

Along the way, Hye-joo meets people connected to earlier parts of her life as well as those linked to her current relationships. Her plans do not always unfold as expected. On a day when she is meant to meet her boyfriend, she instead spends time with his son, Yul-i, and his friend Jong-i. These detours move her farther from the purpose that first set her out.

What to expect

The film is identified as a drama and centers on an intimate, character-led premise rather than a conventional investigation. Its story uses Hye-joo’s interrupted plans, personal connections and unexpected meetings to explore how an apparently straightforward purpose can change as circumstances intervene. The detective-novel setup provides context for the character without establishing Some Detective as a conventional mystery from the supplied information.

Cast and creative team

Yuha Lee plays Hye-joo, the writer at the center of the story. Yoo Myung-jo appears as Yul-i, Choi Hee-jin as Jong-i, and Park Jong-hwan as Tae-jae. Jang Jun-whee and Hwang Eun-hoo are also part of the cast. Kim Mi-young directs the film; no writer is listed in the supplied credits.

• Yuha Lee as Hye-joo
• Yoo Myung-jo as Yul-i
• Choi Hee-jin as Jong-i
• Park Jong-hwan as Tae-jae
• Jang Jun-whee
• Hwang Eun-hoo

Release and production context

Some Detective is a South Korean production from Bori & Odi Film. It is in Korean, runs for 1 hour and 25 minutes, and is listed with a release date of October 9, 2026. The film’s original Korean title is 모종의 탐정.

Production companies: Bori & Odi Film

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With its focus on a writer whose plans are repeatedly redirected by personal encounters, Some Detective presents a compact drama built around movement, relationships and unexpected changes of course. Its premise leaves the emphasis on Hye-joo’s experiences rather than on solving a clearly defined case.

Film data:
TMDB · IMDb