Life and death are both doors. Today, people have to pass through another door - the door of the operating room whether they are born, old, sick or dead. Through the growth of a young anesthesiologist and the change in his outlook on life and death, you will be taken into the joys and sorrows, human relationships, academic battles, and daily life in the operating room where life and death are at stake, full of dangers, and every second counts behind the operating room door. "Fear comes from the unknown" Are we afraid of disease, death, or the unknown...