"O Estrangeiro" (The Stranger) is a novel written by French author Albert Camus, published in 1942. The story follows Meursault, a detached and indifferent man who becomes embroiled in a murder trial after killing an Arab man. The narrative explores themes of absurdism, existentialism, and the nature of human existence. The novel is divided into two parts: the first focuses on Meursault's life and the events leading to the murder, while the second part deals with the trial and its implications. Through Meursault's experiences, Camus examines the absurdity of life and the search for meaning in an indifferent universe.