At work, she's a renowned assassin. At home, she's a single mom to a teenage daughter. Killing? That's easy. It's parenting that's the hard part.
In 1933, when Korea was under Japanese occupation, five people in Gyeongseong are suspected to be "Phantom" spies of the anti-Japanese organization.
An Jung-geun fights for Korea's independence from the Japanese Empire and sparks a movement. In 1909, he assassinates Itō Hirobumi, the first prime minister of Japan and resident-general of Korea.