Lin Qian, a housewife, is summoned to her daughter's school after her daughter gets into trouble. Overwhelmed with anger, she faints and is diagnosed with cancer, with only a few months left to live. When she returns home, her family shows no understanding. Her mother-in-law and sister-in-law mock her, while her daughter refuses to believe she is ill. Misunderstanding her husband's relationship with another woman, Lin Qian decides to divorce him. Her own family cares only about financial benefits, leaving her homeless and alone until her former classmate, Gu Sheng, takes her in. She once softened her heart and returned home, only to see through her family's false affection. During a confrontation, she is so enraged that she coughs up blood, finally revealing her terminal illness to everyone. Her family regrets their actions and tries to make amends, but the older generation continues to upset her, worsening her condition. In a final moment of renewed strength, Lin Qian plays the piano before passing away. Everyone misses their last chance to see her, leaving them with nothing but endless, belated regret.