10 timestamped notes explaining the Korean cultural context in this episode — customs, idioms, food, honorifics, and history, at the moment each appears on screen. These notes discuss events across the whole episode. To see them revealed scene-by-scene as you watch, use the episode page to find an airing.
The killer narrates his crimes using imagery from traditional hunting — calling victims 사냥감 (sa-nyang-gam), meaning 'prey' or 'quarry'. This kind of cold, detached internal monologue is a familiar device in Korean crime dramas to signal a predator who sees people as animals to be stalked, not human beings. The complaint that this victim is too weak to fight back frames murder as sport.
The detective mutters '세상 참 야박하다' (se-sang cham ya-bak-ha-da) — roughly 'the world is truly heartless.' A body going undiscovered for ten days because neighbours didn't notice reflects a real concern in South Korea about 고독사 (go-dok-sa), 'solitary death,' especially among elderly people living alone in cities. It's a topic that regularly prompts public debate there.
The neighbour jokes that Bong-i's grandmother would dash out to watch even if someone lit a 모깃불 (mo-git-bul), a small coil or bonfire to repel mosquitoes, mistaking it for a house fire. In Korea's dense residential neighbourhoods, especially older ones, elderly residents often form a tight informal watch network — knowing everyone's routines is both warmth and gossip.
The murder happens in a 재개발 지역 (jae-gae-bal ji-yeok), a redevelopment zone — blocks cleared for demolition and reconstruction. South Korean cities have thousands of these half-emptied neighbourhoods where long-time residents have moved out but a few elderly or low-income people remain. They are poorly lit, CCTV-free, and largely ignored, making them real-life crime hotspots in Korean news.
The news broadcast invokes the fictional '헤드헌터 (Head Hunter) case from 25 years ago,' which is the show's backstory serial killing spree. Korean crime dramas frequently anchor present-day storylines to a legendary past case that haunts the police — it borrows from the real cultural memory of notorious Korean serial killers of the 1980s–90s whose cases were never solved for years.
막걸리 (makgeolli) is a milky, slightly fizzy traditional rice wine, historically the everyday drink of farmers and working-class Koreans. Grandmothers of that generation drinking makgeolli is a very common and warm cultural image — it's cheap, filling, and social. Bong-i remembering this detail about his grandmother is a tender, very specifically Korean form of grief.
잡채 (japchae) is a festive dish of glass noodles stir-fried with vegetables and meat — it takes effort and is associated with holidays and showing love. The priest quietly making a huge batch, removing the carrots because Moo-chi hates them, and asking Jeong not to reveal she made it, is a deeply Korean way of expressing care: love demonstrated through painstaking cooking, not words.
One victim is listed as working in the kitchen of a 유흥주점 (yu-heung-ju-jeom), a licensed entertainment bar where hostesses accompany customers — a legal but socially stigmatised sector in Korea. The victims' occupations (hostess-bar kitchen worker, non-regular factory contractor, homeless person, student YouTuber, prison guard) are being presented as a social cross-section, hinting the killer has a specific moral framework for selection.
One victim ran a 먹방 (meok-bang) YouTube channel — the Korean-coined genre of broadcasting yourself eating large quantities of food, often live. Mukbang exploded globally from South Korea around 2015 and is a recognised career path for young Koreans. Listing it alongside a prison guard and a day-labourer underlines how varied and ordinary the victims are.
The show-within-the-show '셜록 홍주' is a fictional 시사 프로그램 (si-sa peu-ro-geu-raem), a current-affairs investigative programme — a genre hugely popular in Korea (real examples include 'PD수첩' and 'SBS 그것이 알고 싶다'). These live or near-live prime-time shows carry enormous public weight; the killer using one as a broadcast ransom stage makes sense in a culture where such programmes can reshape public opinion overnight.