Yoo Ji-Yeon (Kim Yunjin) is a prominent lawyer, who has yet to lose a case. Yoo Ji-Yeon then takes part in her daughter's field day. During a race involving the parents, Yoo Ji-Yeon's daughter disappears.
Later in the day, Yoo Ji-Yeon receives a phone call from the man who abducted her daughter. The man makes it clear that he isn't interested in her money. Rather, he tells her that the only way she will ever see her daughter again is to defend a five time convicted felon who is appealing his conviction for rape and murder. Ji-Yeon has only seven days before his trial ends.