Ryun-hee Kim, a North Korean housewife, was forced to come to South Korea and became its citizen against her will. As her seven years of struggle to go back to her family in North Korea continues, the political absurdity hinders her journey back to her loved ones. The life of her family in the North goes on in emptiness, and she fears that she might become someone, like a shadow, who exists only in the fading memory of her family.