Lin Xiaohe, frustrated in her workplace, resigned and returned to her hometown, accidentally discovering that her father Lin Jianguo was suffering from terminal bone cancer. Her father took out a bucket list hiding unfulfilled wishes and dusty past events. Just as Xiaohe was preparing to travel far to Hecheng on her father's behalf to search for relatives, her grandfather Lin Dehou, who had lost touch for half a lifetime, suddenly visited. Three generations squeezed into the old living room, as past estrangements, resentments, and regrets were unraveled layer by layer. From learning to cut window paper and facing life and death, to letting go of obsessions and forgiving each other, clumsy paternal love and delayed grandfather-granddaughter affection slowly flowed. Eventually, her father passed away peacefully, and the family entrusted their longing with window paper, understanding family affection in the fireworks of daily life and tenderly reconciling with life's regrets.