The voice of the killer is heard at the door of the hospital. He tells everyone that they are infected with the h virus, and that he wants them to run away. The doctor tells them that the only way to escape is to get the killer's antibody, which has been given to the patients in the fifth floor. The assistant tells them to get upstairs, and the doctor explains that he remembers that the killer said he would kill them if they ran away. He then explains that the antibody has been injected into the patients and that they will be safe as long as they get the antibody in time. He asks why they are running so fast, and wonders why they suddenly released the virus without a negotiation. He wonders why the doctor did not tell him where Ching Haiye was, and asks why he brought them to the room to talk with him. He says he has to go with his plan b, which is Dong Menling, as a bait. He wants to know if they will retreat, but the doctor reminds him that he has already reminded them of his plan, and he asks if he is a monster. He also asks if they have left, and if they want to talk to him, he tells them they can leave. Furious, furious, and white-haired, he asks what they are planning, and they reply that they do not want to leave. He orders the assistant to go and take care of the situation.