Jin-jung, a delinquent prosecutor that will never exist in the prosecution's history, used to deal with insignificant cases every day.

Jung gets clues about the real culprit of the "Seocho-dong murder case" while handling all kinds of nonsense complaints. The counterattack of the delinquent prosecutor is just beginning.

Jung points Deputy Prosecutor Lee Jang-won as the real culprit of the "Seocho-dong Murder Case". Jung tries to reveal the truth of the case, and Lee Jang-won blocks him.

A sudden suicide of Lee Jang-won. It smells fishy to Jeong and he investigates the case by raising suspicions of murder against Lee Jang-won.

Jung is falsely accused of murder for Deputy Prosecutor Lee Jang-won. Jung begins to investigate who framed him and why that person murdered Deputy Prosecutor Lee Jang-won.

Jung manages to save his own life from the attack of an unidentified gunman. Jung, who was continuing his investigation with his teeth clenched, is shocked to realize the truth. The very man who framed Jung for murder is...