A murder of a taxi driver that turned Korea upside down. The lone witness was a teenager named Hyun-woo who was later forced into making a false confession by abusive cops. Ten years have passed, and Hyun-woo has spent almost half of his life in prison. When Joon-young, a desperate lawyer, learns of Hyun-woo’s case, he instinctively sees an opportunity. However, once Joon-young meets Hyun-woo in person, he feels the passion he had when he first dreamed of becoming a lawyer.