In the hospital corridor, which is filled with the smell of disinfectant, shadowless lamps illuminate life and death, but cannot illuminate the gap between people's hearts. Anyue is one of the most outstanding operating room nurses in the hospital. She is calm and professional, and is the most reliable right-hand man of the chief surgeon. Lu Chenzhou is a star doctor in cardiac surgery with superb skills and a happy family - his wife Su Manqing is an elegant and capable director of internal medicine in the same hospital, and they have two lovely sons. He is the perfect man in the eyes of countless people. Fighting side by side again and again, in the operating room, a high-pressure, closed environment that requires extreme tacit understanding, emotions cross the line silently. Anyue knew that his family was happy, but she couldn't resist the attraction and warmth he brought, and gradually fell into this forbidden love. Her best friend and ward nurse Lin Wei is her only confidant, but she is also worried. Anesthesiologist Gu Chen, as Anyue's friend and secret admirer for many years, is keenly aware of everything. He reminds Anyue time and time again that she is playing with fire and will eventually burn herself, but he cannot wake her up from indulging in it. After all, paper cannot cover the fire. Su Manqing discovered the truth with extraordinary calmness. She didn't cry. Lu Chenzhou broke off his relationship with Anyue. Anyue's world collapsed instantly, and shame, pain, and unwillingness swept over her...