An old residential community plans to install an elevator, which Liang Shuhua on the first floor firmly opposes. At the mediation site, she exposes thirty years of grievances, such as high-altitude littering from upper floors for a long time, clogged sewers, the Zhang family's daughter-in-law intentionally making noise and setting off firecrackers before the college entrance examination ruining her daughter's future, and her being forcibly assigned to the first floor back when housing was allocated. In the end, Liang Shuhua proposes reasonable conditions, everyone apologizes, she signs to agree to install the elevator, and she also waits back for her granddaughter.