Tehran's air pollution has reached maximum levels because of thermal inversion. Unmarried 30-something Niloofar lives with her aged mother, and stays busy with her alterations shop. When doctors insist that her mother must leave smoggy Tehran for her respiratory health, Niloofar's brother and family elders decide that she must also move away to accompany her mother. Niloofar is torn between family loyalty and living her own life and pursuing a potential love interest. She is the youngest and she has always obeyed their orders, but this time she must stand up for herself. 逆温·逆转。越过山丘，才发现无人等候。 妮露法（阿里·礼萨·阿哥克哈尼 Ali Reza Aghakhani 饰）是一个35岁的独身女人，和母亲过着相依为命的生活。因为逆温层，德黑兰的空气质量在不断的恶化，妮露法的母亲因为严重的空气污染而患上了呼吸道疾病，拯救她的方法只有一个，那就是离开德黑兰。 身为家里最小的女儿，妮露法义不容辞的接受了带母亲离开故乡的这一任务，尽管她心里并不是十分情愿，但对于长辈们的要求，她一向都是逆来顺受惯了的。可就在这个节骨眼上，妮露法和曾经的恋人重逢了。旧情人的出现动摇了妮露法的决心，她决定不再做一个顺从的小女儿，为自己的命运抗争。
