Are floor and ceiling noises driving you mad? A woman with hearing impairment moves into an apartment complex to look for her missing sister. She's haunted by strange sounds in her hearing aids and increasingly agitated neighbours who can't deal with all the noises from nowhere. A sleeper hit at the Korean box office, Kim Soo-jin's spine-chilling debut feature makes skin crawl with its immersive sound design and unsettling urban horrors. The intense use of sound and silence sets this apartment horror mystery apart with sensorial thrills and heightened paranoia that feeds the sinister force behind the noise.