Fulfilling her late father’s last wish, Zhang Yuanyuan (Wang Zhen’er), who grew up in the United States, returns to China with her young daughter. There, she is confronted with a painful truth — her estranged mother (Li Ping), whom she has long blamed for abandoning her, has been diagnosed with Alzheimer’s disease. As the mother’s memories fade, Yuanyuan and her daughter accompany her through the gradual unraveling of time. Through fragments of recollection and reality, Yuanyuan’s thoughts drif...