This film blends drama, psychological thriller elements, and supernatural aspects, with roughly equal portions of each. South Korea has demonstrated its ability to craft compelling movies, and this one incorporates cultural nuances—like the prevalence of isolated lives due to work commitments and a distancing from family—that may feel foreign to Western audiences. Director Hong Sung-eun previously directed lesser-known films within South Korea. The story centers on a dedicated call-center employee who leads a solitary existence, largely unaware of her neighbors. She maintains a remote connection with her parents through phone calls and a video feed, observing their daily routines—her father and her ailing mother. Her life takes a turn when she is assigned to train a new colleague, requiring close interaction and familiarity with the job's demands. Simultaneously, she discovers that a neighbor she occasionally saw smoking has died by suicide. This introduces the supernatural element into the narrative. Adding to this, her mother also passes away. Following these events, the film’s momentum diminishes somewhat; ultimately, the protagonist realizes the importance of experiencing life and avoiding becoming a mere automaton. However, beyond strengthening her bond with her father and the departure of the new trainee, little truly changes. She gains a new neighbor who mirrors the smoking habits and conversations surrounding the deceased resident, eventually adopting them herself. I’m unsure if a cultural disconnect contributed to my waning interest in the plot—it's likely a factor—but I found it somewhat predictable and felt it could have been developed further. It's a well-made movie geared more toward an Eastern cultural perspective or those familiar with intense work environments. I would rate it a 7 out of 10, or a B grade.

Source on TMDB