This existentialist classic takes the outbreak of plague in Oran as the background and tells the story of the efforts of doctor Rieux, journalist Rambert and others to fight the plague. The plague is not only a physical disease, but also a symbol of absurd fate and the test of human nature. The novel explores the meaning of existence and the human spirit of resistance through people's choices in disasters - persistence and escape, despair and resistance. The text is calm and restrained, but it hides awe of life and faith in human nature, demonstrating Camus' core idea of "persisting in the absurd".