The film tells the story of Wei Daxue, a lonely and elderly woman, who lives with her dog in a small courtyard in a Beijing hutong. Everything starts and ends here. Day after day of living alone is quiet and boring. There seems to be a transparent wall between Wei Daxue and people and the life in the market, which is cold to the touch. A series of conflicts suddenly broke her originally peaceful life. After experiencing fear, pain, struggle and relief, everything seems to return to peace. However, the truth of all things really unfolds at this time...