Based in Shinmiyangyo, or the U.S. expedition to Korea in the late 19th century, Mr. Sunshine tells the story of a Korean boy born into a family of a house servant running away to board an American warship, later to return to his homeland as a U.S. marine officer. He ironically falls in love with an aristocrat’s daughter and discovers the dark scheme to colonize the country that he once ran away from.

Reunited in their hometown for their father's funeral, two self-interested brothers meet a peculiar woman who shares a huge secret about their family.

A son to a high-ranked official in North Korea commits a series of murders going across the countries around the world. The movie depicts the following events as South Korea, North Korea and Interpol start chasing down after him.

In his quest for a bride to break his immortal curse, a 939-year-old guardian of souls meets a grim reaper and a sprightly student with a tragic past.