Killer's Code

Spy couple live in their midlife crisis and are controlled by higher authorities based oversea. National security agency is chasing them and higher authorities is pushing them, where can the struggling couple go?

In wartime Shanghai, Han Shuying is forced into marriage but later chooses to protect her late husband's family after witnessing his patriotism. As she and his daughter, Xie Ruoxue, face war and survival together, their relationship evolves from reluctant family to devoted allies in the resistance.