Singing and dancing idol Shen Tangyin was scolded by fans of top actor Pei Yan for three years until her four-year-old son Xiaoman held up his ticket and called him daddy during a variety show live broadcast, causing a stir on the Internet. Her resources were blocked and her collaborations were all pornographic, so she gritted her teeth and signed a contract for a suspense film directed by a new director. Unexpectedly, on the day when the crew started filming, Pei Yan was blocking the exit of the station with a true paternity test, behind him were the sound of police sirens and broken fake evidence - it turned out that Lin Zhaoyue had subtracted the prenatal check-up form, Jiang Huaijin had forged the test report, and that old ticket was the knife that cut through all the lies.