11 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.
Vincenzo calls the pigeon 인자기 (Injagi), a name he gave it in earlier episodes. The name is a playful twist on the Italian name Inzaghi — a famous Italian footballer — which fits Vincenzo's Italian mafia background. Koreans often give animals nicknames that sound both Korean and foreign at the same time.
장한서 is mocking the assassins by comparing them to the bumbling burglars in the 1990 Hollywood comedy 'Home Alone' (나 홀로 집에 in Korean). That film was a massive hit in Korea and is still a go-to cultural shorthand for a villain who keeps failing in embarrassing ways.
정인국 quotes Gollum's 'My Precious' line from 'The Lord of the Rings' in English to describe the Guillotine File as an all-powerful object. 'LOTR' is enormously popular in Korea, and Gollum's catchphrase is widely recognised slang for something someone is obsessively possessive about.
희수 uses the word 오지랖, which literally means the wide front flap of a traditional Korean jacket but has come to mean being a nosy busybody who meddles in things that aren't their concern. Here she flips it positively: caring about social justice is a good kind of 오지랖, a sign they've grown.
장한서 brings 루왁커피, the famous Indonesian coffee made from beans that have passed through the digestive system of Asian palm civets (사향고양이). It is one of the most expensive coffees in the world and is sold in Korea as a luxury gift item — Han-seo is trying to impress with a flashy peace offering.
Vincenzo quizzes Han-seo on two real economics concepts: Adam Smith's 'invisible hand' (보이지 않는 손) from 'The Wealth of Nations', and Wagner's Law (바그너의 법칙), which predicts that government spending grows as an economy develops. Han-seo's wrong answers — 'manner hand' and 'law of the jungle' — show he has been reading about business without actually understanding it.
A 무속인 (musok-in) is a Korean shaman, often called 무당 (mudang). Shamanism (무속신앙) has been practiced in Korea for thousands of years; shamans perform rituals called 굿 to communicate with spirits, divine the future, and resolve bad fortune. It is still widely consulted by business people and politicians, which is why 오 사장's dependence on one is treated as both believable and a usable weakness.
주성 solemnly explains that their fake shaman shrine is dedicated to a deity called '박효신' — which is the real name of a hugely popular Korean ballad singer. The show slips in the celebrity name as a deadpan joke that Korean viewers catch immediately, while 오 사장 is too rattled to notice the absurdity.
The revelation that 장한석 killed four classmates echoes a real and deeply sensitive social issue in Korea: 학교 폭력 (school violence / bullying). High-profile cases of wealthy families using money to suppress evidence and avoid punishment have repeatedly shocked the public and fuelled demands for stronger accountability laws.
The disclosure that 장한서 turned to drugs after years of abuse by his brother connects to a recurring real-world story in Korea: children of powerful chaebol families being caught using illegal drugs — most commonly methamphetamine or marijuana — and receiving unusually lenient treatment from prosecutors.
The detective formally announces the charge before arresting Vincenzo, which mirrors actual Korean criminal procedure: under the Korean Criminal Procedure Act, officers are required to state the suspect's name, the reason for arrest, and inform them of their right to an attorney at the moment of arrest.