Ji Ling (Zhu Zhiying) lost her son in an accident and fell into despair and grief. When sorting out her son's belongings, Ji Ling found a mysterious note. Under the guidance of the note, Ji Ling decided to go to Shangri-La, a paradise on earth, where perhaps the bond between her and her son still remained. On the way, Ji Ling met a man named Alex (Wu Zhongtian), and the two traveled together. As time went by, the mature and stable Alex gradually attracted Ji Ling's attention. Ji Ling, whose marriage life was in trouble because of the pain of losing her son, could not suppress her feelings for Alex. Afterwards, Ji Ling fell into a valley by accident and was taken in by a Tibetan family. As a result, she met a kind and simple Tibetan boy (Ge Sang Dingzhu). During the time she spent with the boy, the haze and fog in Ji Ling's heart gradually dissipated.