Living in a small town in northeastern China, Wu was once head of the workshop of the town’s wool mill but lost this supposedly life-long job when the mill went bankrupt, and worked as a janitor in his nephew’s bar to make a living. With his wife gone and his son living elsewhere, Wu was gradually despised by people around him as he started drinking his days away.

젊었을 때 기술자로 일해온 아버지는 은퇴 후 청소일을 하면서 하루하루를 혼자서 술로 보낸다. 말기 암이 발견되자 아들을 위해 모든 걸 내려놓기로 한다.