[7] Set in Berlin in 1986, the story revolves around Oh Young-Min, who has become a wanted man due to a run-in with a North Korean spy.

Oh, a South Korean economist in Germany, moved to North Korea with his wife Shin Suk-ja and his two daughters.

Following his surrender at the South Korean embassy in Germany in 1992, his wife and daughters were reportedly imprisoned in North Korea's Yodok concentration camp.

Choi Hong-jae [ko], who was an official at the presidential Blue House during the early Park Geun-hye administration, was involved in the campaign to raise public awareness of Shin's imprisonment.

[12][1] The film was originally set to be released in April 2017, but was pushed to 14 November 2018 due to the whitelist scandal involving former South Korean President Park Geun-hye.