Le film a originellement été tourné en 30 minutes, et n'est composé que d'un seul plan. Pour la sortie cinema, le ŕealisateur a choisi de rajouter quelques scènes pour gagner en intérêt.
"But while doing rehearsals and looking at the actors' performances, I thought adding some scenes to the original 30 Minutes format and making a film out of it would have been fun. Because the actors never stop and have to act until the end, this film feels more like a stage play, so the actors' performances here were crucial." Song Il-Gon
