With the background of security volunteers, the film will lead the audience into the life of old Beijingers and get a glimpse of the living conditions of such a group of "mysterious" people in the city of Beijing.

Cast

Du Xiaofan

Ma Haojie

Zhang Bingqian

Xu Yunfang

Tong Yang

Zhuang Qianqian

Chen Xingyu

Hua Ji