Summary
The unnamed narrator is an insomniac dissatisfied with his job and lifestyle. As a form of therapy, he attends support groups for problems he does not have, such as alcoholism and testicular cancer. Here, he finds emotional release in expressions of vulnerability, until he encounters another impostor, Marla Singer. After a confrontation, the two agree to attend different groups.
During a business flight, the narrator meets a soap salesman, Tyler Durden, who criticizes his consumerist lifestyle. When an explosion destroys the Narrator's apartment, he moves into Tyler's decrepit house, and the two start an underground fight club in a bar basement. Tyler saves Marla from an overdose, initiating a sexual relationship between them, while the narrator remains cold to her.
The narrator quits his job and blackmails his boss for funds. He grows Fight Club, attracting new members, including his cancer support group friend, Bob. Tyler transforms the club into Project Mayhem, committing acts of vandalism to disrupt the social order.
Feeling sidelined, the narrator confronts Tyler, who admits to orchestrating the explosion in the narrator's apartment to free him from his lifestyle. The two argue, and Tyler soon goes missing. When the police kill Bob during a mission, the narrator tries to dismantle Project Mayhem and discovers that its reach has gone nationwide. Marla claims the narrator's name is Tyler Durden, revealing that he and Tyler are split personalities, with Tyler taking full control during the narrator's insomnia episodes. This revelation triggers Tyler's reappearance and angers him.
The narrator discovers Project Mayhem's ultimate objective: to erase all debt records by blowing up the skyscrapers of consumer credit companies. He warns Marla to stay away from him and goes to the police to confess, but finds many of the police are themselves Project Mayhem members, who attempt to castrate him on Tyler's orders. The narrator escapes and disarms one of the bombs, prompting Tyler to attack him. Accepting that he is Tyler, the narrator shoots himself in the mouth, "killing" Tyler, while the bullet passes through the narrator's cheek. Marla and the narrator hold hands and watch the skyline as the targeted buildings collapse.
Source: Wikipedia (CC BY-SA 3.0)
