About a man accused of murder who is silent and plays only with a button.

Somewhere in the outskirts of Tehran a small factory illegally employs Afghan asylum seekers, who live with their families in old containers or modest shacks in nearby shanty towns. Saber, a young Iranian worker, secretly meets Marona, daughter of Abdolsalam, an Afghan worker. A love story unfolds, the conclusion of which no-one can foretell.