Kim Hyun-Soo (Kim Soo-Hyun) is an ordinary university student, but he is accused of murder by an overnight mistake. His life descends into a bottomless pit.

Shin Joong-Han (Cha Seung-Won) is a third rate lawyer. He barely managed to pass the bar exam. Shin Joong-Han has never been great in anything, but he is the only one who tries to help Kim Hyun-Soo.