In the early 1990s, in a small western city, Zhang Xiaolei (played by Kong Weiyi), who had finished the entrance examination to junior high school, finally ushered in the long-awaited summer vacation without homework. However, this free, hot summer is not as prosperous and hot as imagined, but more of a normal repetitive family life and a lot of free time. It happened that the country began to implement the transformation of state-owned units that year, and the iron rice bowl was broken. The unit of Zhang Xiaolei's father (played by Zhang Chen) was also hit by the reform. The life of every family in the family compound where they lived was affected by the reform. The children were bored all day long, while the seemingly calm adults were as hot as the scorching sun. Zhang Xiaolei was so quiet, feeling everything that happened around him. It was not until his father left home with others for a living, and only the mother and son were left at home, that Zhang Xiaolei really felt that time had passed and life was different. On the night of the beginning of autumn, the epiphyllum of Zhang Xiaolei's family quietly opened in the yard, as if it meant something...