In 4 Years in Tehran, Mahsa is an Iranian girl who wants to further her education. She goes to the capital of her country to study at the university, but the president of the university doesn't agree to offer her a place to live in the student dormitory. So, Mahsa has to find a family that she can live with temporarily. Let's just say that this family is anything but normal, but she has no choice to live there because Mahsa needs a place to stay.