In the village, the family of hadron is just an ordinary family, a three-story building, plus a courtyard and three tile houses. Qiangzi is the only son in the family. He is 23 years old. He is a bricklayer. He helps people build houses with the head of a contract worker in the outside village.

"Auntie, we are here to find your son." I said to hadron's mother. The mother of Qiangzi is an ordinary rural woman, whose appearance should be in her fifties. A pair of rough big hands, hair a little white silk, is a very simple rural woman.

"who are you? What do you want to do...