Forced by her mother's threat to take her own life, Lin Xia gives up her love for Gu Shen, a poor young man, and leaves for America to inherit the family business. Ten years later, she returns to China under the name “Su Wan” to take revenge, only to get into Gu Shen's taxi on a stormy night. After his family goes bankrupt, Gu Shen is reduced to working as a driver. Believing Lin Xia abandoned him for money, he deliberately hides his identity. Lin Xia reveals the truth through “unanswered phone calls”: her family had imprisoned her and forced her into an engagement. In silence, Gu Shen learns that she nearly took her own life over the years to keep their promise. When Lin Xia asks, “Can we go back to how things were?” Gu Shen suddenly pulls over beneath the plane tree where they first fell in love. In the trunk are the love letters he has written every day for the past ten years. And his true identity turns out to be an illegitimate son disowned by the Gu family, as well as the greatest business rival of Lin Xia's family...
