The film is set in the near future where South and North Korea have been reunified. Chan-Ki(68) lives alone in a council flat in a suburb of Seoul and his son, like most Koreans, works in China due to an economic collapse of Korea. On Father's Day Chan-Ki receives a high-tech phone device as a gift from his son. It turns out that setting up this unfamiliar device is beyond his ability. He goes for a journey to get help from his neighbours to have the device work.