Han Jung Hyun, an agent with the Agency for National Security Planning, lives a double life. After falling in love with Choi Yeon Soo, a human rights lawyer, he marries her and becomes a devoted husband and father. However, his past is threatened when Yeon Soo is nominated for a high-ranking government position. As she takes on her new role, she uncovers the shocking truth about her husband's secret past. This sparks a fierce battle, with Jung Hyun fighting to protect his family and Yeon Soo determined to seek justice against powerful forces.
(Source: MyDramaList)
~~ Remake of the British TV series "Undercover" [2016].
