An unsolved murder case of a young girl repeats itself twenty years later and awakens the memories of a peaceful town. Shan Feng, who was once a witness to the murder case, now returns to the town as a policeman, unable to forget the painful memories. He seeks out the truth and discovers all the people related to the case have undergone drastic changes.

Song Yang, You Jingru, Yuan Wenkang, Jiao Gang, Li Jiuxiao, Song Ningfeng, Qin Yu, He Peng, Du Zhiguo, Wang Longzheng, Jie Bing, Liao Yinyue