A taxi driver is found dead, and Hyun-woo, the only witness, charged with a murder and serves 10 years in prison. While offering pro bono services, a lawyer Junyoung meets Hyun-woo, and they begin their journey to prove his innocence.
| Actor | Role |
|---|---|
 Jung WooLee Joon-young | Lee Joon-young |
 Kang Ha-neulJo Hyun-woo | Jo Hyun-woo |
 Kim Hae-sookSoon-im | Soon-im |
 Lee Dong-hwiMo Chang-hwan | Mo Chang-hwan |
 Lee Kyung-youngAttorney Goo Pil-ho | Attorney Goo Pil-ho |
 Han Jae-yeongBaek Chul-gi | Baek Chul-gi |
 Kim So-jinKang Hyo-jin | Kang Hyo-jin |
 Min Jin-woongOh Jong-hak | Oh Jong-hak |
 Lee Jung-eunOh Mi-ri | Oh Mi-ri |
 Choi Jung-hunJong-hak's Friend | Jong-hak's Friend |
 Lee Dong-heeTaxi Driver | Taxi Driver |
 Kim Ha-naLee Byul | Lee Byul |
 Jeon So-hyunWoman 1 | Woman 1 |
 Son Ji-youngCourtroom Spectator | Courtroom Spectator |
 Shin Won-ho[Soo Jung's boyfriend] [Present day] | [Soo Jung's boyfriend] [Present day] |
| KKim Jong-eonDetective | Detective |
 Kim Dong-hyeokThemis Intern 1 | Themis Intern 1 |