The birth of a child has caused an inflection point and a rift in the intimate relationship of a loving young couple, and the once affectionate campus couple eventually goes their separate ways. After the baptism of life, they move forward steadily in their respective life tracks. However, the child's sudden onset of leukemia disrupts the originally peaceful reunited family. The divorced couple's peaceful lives are forced to let go of their differences due to the child's malady and join hands again to fight against fate. The fate of several families is thus closely linked. In the process of saving the child, the adults are also being saved by the child, reconciling with the past and themselves. Based on Wang Xiaoshuai's movie.