Noh Chakhee, the ace lawyer with the highest winning rate in the big law firm, Jangsan, becomes a public defender of Jeongha overnight. She becomes involved with a unique and eccentric public defender, Jwa Sibaek, and takes on a serial murder case of wealthy men. Can she defend the criminal who killed her loved one in this legal mystery drama that aims to get to the bottom of a very old case?

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