Jung Moon Sung

Criminal profiler Kang Tae Joo is pulled out of retirement by a chilling summons: an imprisoned serial killer has been linked to additional unsolved deaths through DNA evidence, but he insists that Tae Joo joins the investigation, believing that Tae Joo can prove his innocence. Tae Joo is brought back into a world he thought he'd left behind 33 years earlier, forcing him to face ambitious prosecutor Cha Si Young, with whom he shares a difficult past, in pursuit of the truth. But as with many cold cases, the truth isn't as straightforward as it seems - and Tae Joo might be more involved than even he knows. Can Tae Joo finally close the chapter on the "Scarecrow" murders for good, or will a new twist upend his life?

At JU Construction Company, notorious for countless corruption cases, the audit team is busy at work. The team comprises a polar opposite duo: a cold team leader and a generous Gen Z employee. Together, they navigate through turbulent teamwork at first. Yet, as they collectively tackle diverse cases, they harmonize into an unstoppable investigative pair.

Driven by a personal tragedy, a pianist-turned-lawyer navigates the complex world of divorce - fighting for his clients to win by any means necessary.

The story of when Agent Seo Soo-yeon, who returns from China, gets involved in a dangerous deal with Agent Jang Chun-woo.

Kang Do Chang has worked as a detective for the past 18 years. He was born and raised in Incheon. He investigates cases using his experience and personal connections, forgoing scientific technique, or reasoning power. Oh Ji Hyeok is an elite detective. He has 9 years of experience. Unlike Kang Do Chang, he investigates cases using evidence and insight into the criminal's psyche. Due to trauma from his childhood, he does not share his feelings. He is wealthy thanks to his late uncle, who left him with a large inheritance. Jin Seo Kyung works as a newspaper reporter. She is a 5 year veteran and passionate about her work.

Set during the Joseon Dynasty period, the series follows three people from different walks of life who came together to help Prince Lee Geum claim the throne and reform the Saheonbu.