Wonsam, a former servant of a fallen household, wanders into the Pyeongyangseong Fortress in search of shelter and employment. Seondal, a former tenant farmer, takes pity on Wonsam and helps him put together a dugout hut of his own in the slum outside the fortress and settle down in Pyeongyang as an a-frame porter. Their friendship sours, however, when Seondal falls ill and the grateful Wonsam buys rice for Seondal and his family, exacerbating the tension between Seondal and his wife, who belittles Seondal daily by comparing him to Wonsam. In the meantime, Wonsam discovers his concerns for Seondal’s wife has taken a romantic turn.