Kim Sunmyung, a man with communist beliefs who refused to recant his ideals, would ultimately serve more than 42 years in prison. Based on a true story, the film tells of personal conviction and dignity.

Kim Joong-ki
as Kim Sun-myung

Ahn Suk-hwan
as Oh Tae-shik

Choi Il-hwa
as Ahn Hak-seob