Paternal Secrets is about that Its story is about Saman Tawfighi, a famous child psychologist, who accidentally met his fellow university student Mahshid and plans to marry him, but Mahshid chooses another person as his wife. When Saman finds out that Mahshid has separated from his wife, he proposes marriage to him once again, but Mahshid's condition for accepting Saman's proposal is that he gets along with his ten-year-old son dynamically. In this film Amir Mortazavi (امیر مرتضوی) collaborates with Sahar Zakaria (سحر زکریا), Masoud Atyabi (مسعود اطیابی), Danial Hakimi (دانیال حکیمی), Yadollah Shahidi (یدالله شهیدی)