Mehdi in Black falls in love with a foreign girl who loves him back. However, in order for them to get married, Mehdi has to fulfill his father's will and marry off her sisters first.
Between the years 1941-51, many immigrants went to the south of Iran to work for the oil companies there. A couple, Tal'at and Karamat also go there in hope of a better life. But Tal'at, who is pregnant, catches leperosy and they have to remain outside the city. The husband makes a tea-house and they stay there. An immigrant girl Manzar who had lost her parents, come to the tea-house and lives by them too.
Fati goes to Tehran from her hometown to be a maid in Khan Sardar's house. Shamsollah Zafar, the driver of Khan Sardar, takes Fati to Sardar's house. Sardar insists that his son Parviz marry a girl named Eshrat.
