Noise

Noise (노이즈) follows two orphaned sisters, Joo-young and Joo-hee, who achieve their dream of buying a home in the aging, corridor-style Samil Apartment complex. However, their milestone quickly curdles into a living nightmare when mysterious, violent banging and dragging sounds begin reverberating through the ceiling and floorboards. While Joo-hee descends into frantic insomnia and paranoia, Joo-young—who is hearing-impaired from a childhood car crash that also left Joo-hee with a physical limp—initially fails to register the disturbance, creating a rift that drives Joo-young to stay at her factory’s dormitory.

The tension escalates when Joo-hee abruptly vanishes from their locked apartment, leaving her phone and personal belongings behind. Rushing back to the building, Joo-young joins forces with Joo-hee’s boyfriend, Ki-hoon, to investigate the disappearance. Their inquiries are met with hostility: the menacing downstairs neighbor from unit 504 issues violent threats under the belief that the sisters are orchestrating the noise, while the building's residents' association vehemently attempts to silence any controversy that could derail a lucrative upcoming reconstruction project.

As Joo-young's new hearing aid begins picking up unnatural audio frequencies and phantom whispers through the walls and ventilation shafts, she realizes the building harbors a malevolent presence. What begins as a dispute over inter-floor noise unravels into an exploration of isolation, sensory distortion, and dread buried beneath the concrete.

Director Kim Soo-jin uses the cultural phenomenon of inter-floor noise (cheunggan soeum) as an allegory for societal alienation, modern housing anxiety, and the breakdown of community empathy.

The central thesis of the film asserts that when individuals exist within hyper-dense living spaces driven solely by capitalist real estate value and selfish self-preservation, neighbors stop viewing one another as human beings. Instead, they perceive each other as intrusions and threats. Kim explores how collective indifference and the suppression of others' suffering (sacrificed for property valuations) fester into literal and psychological rot. Through the protagonist’s auditory impairment, the film conveys that true horror does not merely stem from unbearable external noise, but from society’s selective refusal to listen to the cries of the vulnerable.

Viewers and critics have proposed several alternative readings of the narrative:

The film addresses key facets of contemporary South Korean society:

• The "Cheunggan Soeum" (Inter-Floor Noise) Crisis: In South Korea, where high-density concrete high-rise apartments (apateu) dominate urban living, sound insulation issues frequently result in legal battles, physical assaults, and even homicides. Noise reflects this shared public anxiety.
• The Reconstruction (Jae-geon-chuk) Speculation: In Korean urban culture, old apartment complexes awaiting redevelopment approvals generate speculative real estate bubbles. The film depicts how tenants will intentionally silence scandals, suicides, and safety warnings to safeguard the resale value of their property allocations.
• Box Office and Reception: Despite a modest budget of approximately $2.5 million (3.5 billion KRW), Noise became a box-office success upon its June 2025 domestic release, surpassing its break-even point with over 1.7 million admissions and generating strong buzz among summer horror audiences.

Critical and audience reception holds an aggregated breakdown of approximately 70% positive and 30% mixed/critical.

Praised Elements:

• Sound Design: Universally acclaimed for its innovative, jarring soundscape that juxtaposes deafening clatter with eerie muteness.
• Lead Performances: Lee Sun-bin’s nuanced portrayal of a deaf protagonist and Ryu Kyung-soo’s chilling turn as the unhinged neighbor received strong praise.
• Tension Building: The first two acts succeed in crafting an unsettling, claustrophobic atmosphere out of everyday apartment life.

Points of Criticism:

• Third-Act Genre Shift: Several critics and viewers noted that the sudden transition from grounded, realistic social thriller into supernatural monster/ghost tropes felt slightly disjointed and overcomplicated.
• Ambiguous Ending: The climax and resolution left some general audience members frustrated by unanswered narrative questions.

Overall Verdict: An effective, claustrophobic South Korean horror debut that successfully turns a distinct everyday societal problem into a sensory film experience.