This summer is unusually hot, with the feels-like temperature reaching 45 degrees Celsius. As the heat rises, the careless Ruan Fan accidentally locks his mother inside his car. Zhen Xinshan, passing by, hears the cries for help from the elderly Mrs. Cuihua and prepares to smash the window to save her. Unexpectedly, he is falsely accused of being a car thief, a human trafficker, and a psychiatric patient with delusions. Zhen Xinshan is unable to defend himself. As the argument intensifies, the clever old lady smashes the car window herself to save her life. She presses the unlock button and crawls out, but accidentally falls and injures her head. At the hospital, the oblivious Ruan Fan and Zhang Hongxing continue to harass the nurse, Bai Rourou, and Zhen Xinshan, who is preparing for surgery. Once the truth comes to light, Ruan Fan feels deep regret for his carelessness and recklessness, begging Zhen Xinshan to save his mother. Zhen Xinshan, setting aside past grievances and upholding medical ethics, successfully treats the injured mother.