The man from nowhere Korean movie 2010
Delusional Otaku anime and manga and kdrama - A podcast by Delusional Otaku

Cha Tae-sik is a quiet man running a pawnshop. His only friend is a little girl, So-mi, who lives in the same neighborhood. So-mi's mother, Hyo-jeong, is a go-go dancer and heroin addict.