What is "poongsan"

Poongsan (; lit. "Phungsan Dog") is a 2011 South Korean thriller film directed by Juhn Jai-hong, starring Yoon Kye-sang and Kim Gyu-ri.

Poongsan, whose real name is never revealed, is a mysterious messenger who crosses the demarcation line between the two Koreas, delivering letters and cherished heirlooms between separated families in Seoul and Pyongyang.

One day he is commissioned by South Korean government agents with the task of smuggling in In-ok, the beautiful lover of a high-ranking North Korean defector, into the South. Yet things take an unexpected turn when the deliveryman falls for the young woman, but their romance is put in jeopardy by the obstacles they encounter.

Part love story, part postwar tragedy, with a dose of comedy thrown in, the low-budget film Poongsan depicts the sad reality of the division between the two Koreas.