Noh Ji Wook (Ji Chang Wook) is handsome, hardheaded and clever. What people don't know is that he was a prosecutor in the Central District Attorney's Office who ends up changing careers and becomes a private attorney. He harbors a deep trauma from a childhood incident involving his parents and his first love.
Eun Bong Hee (Nam Ji Hyun) was a talented athlete in her youth, she now works as an assistant prosecutor and wants to become a lawyer. She is confident, tenacious and strong. she starts working under Ji Wook for an important case that puts both of them in danger.
They end up being the target of an amnesiac murderer, now, without time to lose they need to work harder to catch the amnesiac murderer and in the meantime a relationship blossoms between them.