Yong-nam graduated from a university several years ago, but he is still looking for a decent job. His hobby is rock climbing, which he was an active participant in his university days. Meanwhile, Yong-nam's mother Hyun-ok is set to turn 70 years old and she will have a birthday celebration at a convention hall. At his mother's birthday celebration, Yong-nam sees Ui-joo. She works as an assistant manager at the convention hall. Back in their university days, Yong-nam and Ui-joo were members of the rock climbing club. Yong-nam confessed his feelings for her back then, but Ui-joo rejected him. To this day, Yong-nam still holds feelings for Ui-joo. Suddenly, a lethal gas spreads throughout the area.
Starring Jo Jung-suk