On National day, Sheng Liming, a junior high school teacher, is bored and sits around in his single-room dormitory. Meanwhile, his former student Dong Jie plans to take a documentary about Sheng's life. During the filming, one of Dong and Sheng' friends tells them about the news that Dong's former classmate Li Yanwu is missing for quite a while. It seems to infuse some fresh excitement into Sheng's difficult holiday.... see more