Ad-lib Night (; "A Very Special Guest") is the third film by South Korean director Lee Yoon-ki. A group of boys from the country who have come to Seoul to find the runaway daughter of a dying man to be with him on his death bed. The film, based on a short story by Japanese writer Azuko Taira, debuted at the 11th annual Pusan International Film Festival as well as 57th Berlin International Film Festival.
Bo-kyung (Han Hyo-joo) is approached by two young men from the countryside, who are both convinced she is Myung-eun, a girl who left the village years ago and whose father is now dying. When they realize she isn't who they think she is, the more outspoken of the pair, Ki-yeong (Kim Young-min), asks her to be the "stand-in" for a night, so that the old man can die after seeing his estranged daughter one last time. Despite her hesitation, she gets in their car.