(Korean: Sais-sori / 사잇소리) is a 2022 psychological thriller directed by Kim Jeong-uk. It explores themes of urban claustrophobia, obsession, and the thin line between creative inspiration and dangerous voyeurism. Core Premise & Plot
: Encouraged by a friend to write about her surroundings, Eun-soo begins tailing and wiretapping her neighbor, Ho-kyung , hoping his secrets will inspire her work. Exist Within (2022) (Korean)
The film is available on several streaming platforms, including: Rakuten Viki (with subtitles). (Korean: Sais-sori / 사잇소리) is a 2022 psychological
as Eun-soo: The protagonist whose desperate curiosity leads her into danger. The film is available on several streaming platforms,
The story follows , an aspiring but struggling writer living in unit #401. Desperate for a winning idea for a screenplay competition to help her family's finances, she becomes obsessed with a persistent "thudding" noise coming from the apartment above her, unit #501.