Takhtekhab-e se nafare

Mahmoud and his wife have a comfortable life; however, there is the problem that Mahmoud's wife cannot have children. Their relatives, including Mahmoud's mother, his brother, and his brother's wife, who has eight children, constantly belittle them. After a while, Mahmoud's mother decides to arrange a marriage for him with the young daughter of an acquaintance. This marks the beginning of the troubles for Mahmoud and his wives.