Hye Rim is a perfect mom inside and out. She pays a lot of attention to her children’s education. She’s also a perfect housewife who supports her husband very well. But in fact, she’s a former North Korean informant. Out of the blue, she’s assigned the mission of recruiting her son, who works for the National Intelligence Service (NIS), into espionage activity. In order to protect her son, she can do anything, even gamble her life.