The Great Silence (1977)

Azar is studying literature at Jundishapur School of Ahwaz. His sister, Parvin, has been separated from his husband Jamshid and has been drawn to the wrongdoers. Azar leaves her sister, and marries a young student named Homayoun. When Homayoun realizes the relative proportions of Azar and Parvin, his relationship with Azar is cut off