A father and a son die on the way to the hospital due to an accident. The medical examiner declares that the son died 8.5 minutes earlier than the father. According to the law of all inheritance, Ehsan goes to the younger son, while Yekta (Shabnam Qalikhani), his brother's wife, is facing financial problems. It turns out that in fact, the father passed away earlier and Farzin, Ehsan's brother-in-law, manipulated the forensic medical certificate due to his enmity with Yekta, and on the other hand, Ehsan has no blood relation with his father at all and is his adopted child.