One day, a 40-year-old taxi driver is found dead in the small town Iksan. Hyun-woo (KANG Ha-neul) is a witness to the crime but finds himself sentenced to ten years in jail, taking the wrap for a crime he didn't commit. Following his release, Hyun-woo opts to lead a quiet life. At the same time, Joon-young (JUNG Woo) is a trial lawyer who has just lost a major class action suit. Due to his significant debt, he chooses to find a stable position with a law firm. At his new job he takes part in pro bono law services offered by the firm and then meets Hyun-woo.
