A man named Hadi Sattari (Reza Fayazi) and his daughter Mona (Delaram Mostofi) are guests of the hotel to participate in chess tournaments, and by chance they meet Hadi's old classmate, Behzad Bijani (Mahmoud Paknit). This encounter reminds of the old dispute between two friends; But when Hadi's back hurts and knocks him down, he needs Behzad to take his daughter Mona to her chess match. On the other hand, Vahid's sister Vajiheh (Sosan Maqsoodlou) and her husband (Mohammed Rohi) come to the hotel to visit him and praise him about his father. Vahid's father (Ruhullah Mufidi) also comes to him and asks him to mediate between Wajiheh and his father's wife.