A Lone Tree(서서 자는 나무)is a December 9, 2010 Movie directed by Song In-Sun South Korea.

Plot

Two firefighters, Gu-sang and Seok-woo, rescue Sun-yeong who gets stuck in a revolving door. After the rescue, Gu-sang marries Sun-yeong and lives happily. And one day, Gu-sang learns that he has just a few months to live. Seok-woo treats him like his own brother, but he is being tormented by his love for Sun-yeong. Gu-sang also suffers from intolerable pain, but whenever he does, an unknown light, which puts his mind at ease, appears. He wonders about this light. While Seok-woo is hiding his love towards Sun-yeong, Gu-sang is concealing about his terminal illness. However, they know each other's secret. The two men are called to the scene of a fire. Gu-sang sacrifices his life for Sun-yeong and Seok-woo. After Gu-sang’s death, Seok-woo learns about the reality of the light, which made Gu-sang feel comfortable. -- M-Line