An exhausted security guard is transferred to a morgue and, on their first night, discovers that the shadows and silences hide a torment from which there may be no return.。要點包括：第一，第二階段溯源工作應以世衛大會決議為指引，以科學家為主體，以證據為基礎開展科學溯源
An exhausted security guard is transferred to a morgue and, on their first night, discovers that the shadows and silences hide a torment from which there may be no return.