After supporting his family for years, Gu Linchuan discovers that his wife, Su Zhiyi, has devoted her energy and savings to the family of her old friend. When their son suffers a devastating accident, Gu seeks help but finds himself with nowhere to turn, finally seeing just how unbalanced his marriage has become. Faced with Su Zhiyi's belated remorse, Gu Linchuan refuses to let old feelings pull him back. Instead, he chooses to let go of his obsession and quietly say goodbye to the memories of his son. He sorts through old accounts and memories, leaving her belated apologies behind.