讲述了一个离家生活在城市多年的年轻人为了寻找生命的出口，回到了自己上中学时候的小镇，开启了十五公里步行前往家乡的旅程，一路中久远又熟悉的环境将他的思绪重新带回到了童年难忘的生活情境中。

It tells the story of a young man who left home and lived in the city for many years to find the exit of life and returned to his town when he was in middle school. He started the journey of walking 15 kilometers to his hometown.