Xiaoxian's father is a policeman, and she herself is stuck in the monotonous confines of her cramped room. Until one day when, while reviewing her father's case file, she stumbles upon a diary that unveils the life of another Tibetan girl, Yicuo Ma. The present, the past, the diary, and imagination intertwine and ferment. As Xiaoxian sets out to uncover the truth, she finds that reality is even more absurd—yet Yicuo Ma's sincere and unpretentious spirit remains with Xiaoxian forever.