When she was young, Meng Shengnan had loved someone: she passed by his classroom secretly, watched his shadow quietly and bowed her head when he turned around. When she went to university, she became the girlfriend of his childhood friend. Many years later, they met in the hometown. He was no longer the unruly boy and looked at her with a bristly unshaven chin, and his eyes were full of stories. She quickened her pulse and he ran down a convict.