Joo Suk-tae

Retired detective Choi Sung Eok and his wife in an old apartment. After investing in his son's business, Choi Seok Eok struggles to cover his and his wife's basic living expenses. Upon taking a janitorial position at a shopping center, he finds himself facing Park Yong Goo, a young man who has been arrested many times in the past.

A boxer, fresh out of prison for killing his opponent during a match, and his ruthlessly ambitious friend - both of whom get wrapped up in conspiracy and betrayal as they choose different paths to live new lives. (imdb)

A historical drama that deals with the second and third invasions of Goryeo by Khitan, also known as the Goryeo-Khitan War, from the early 11th century. (imdb)