A hospital nurse is hired to care for an absent doctor’s frail mother on 10 consecutive night shifts during a blizzard. Exhausted after each shift, she experiences insomnia at home, poring over household clues as to her alienation within her family, and daily becoming more ghostlike, in what may be an emotional death or rebirth. Fatemeh Motamed-Arya portrays the weary nurse with utter precision, as director Morteza Farshbaf masterfully constructs an atmosphere of charged unfamiliarity in only his second feature.