An Iranian couple plans to flee the country with their young daughter, but finds their marriage suffering after their plans fall through due to an unforeseen complication. Simin; her husband, Nader; and their daughter, Termeh, are all set to leave Iran when Nader impulsively cancels the plans to care for his ailing father. Incensed, Simin attempts to sue for divorce, but finds herself forced to move back in with her parents when the family court rejects her request. In a naïve attempt to reunite her fractured family, Termeh subsequently moves back in with her father as her grandfather slips deeper into the throes of Alzheimer's disease. However, when the demands of caring for his father become too great a burden for one man to carry, Nader hires Razieh as a nurse. At first Razieh seems like the answer to all of Nader's prayers; little does he realize she is carrying a child, and that she's been keeping her career a secret from her husband. Then, one day, Nader returns home to find his father bound to a table and Razieh nowhere in sight. In the explosive confrontation that follows, Termeh sees a side of her father she never knew existed, and Nader's rage threatens tragic consequences for all involved.