Couples after twelve years of life have now come to some sort of homogeneity in life.
When Fereydoun's children put him in a nursing home, his ex-wife Shokoo takes him to her house although her new husband does not quite approve.
Farrokh is a mid-aged man who lives with his brother Farid. They have a new family as their tenants but soon Farid discovers that they are alien who wants to research on Earth and send reports.
