Nasrin lives with her single mother. Whenever she asks about her father, she's told that he suddenly went abroad and never came back. Nargess lives with her single father. Whenever she asks about her mother, she's told that she suddenly went abroad and never came back. The two girls meet in a chance encounter and realize that they're twin sisters and they've been lied to about their parents. Their father is engaged to get married to another woman, but Nargess can't stand her. The two girls switch places in a scheme to break up their father's engagement and get their parents back together.