The Narrator, an automobile recall specialist, is unfulfilled by his job and possessions and suffers from chronic insomnia. To cure this, he attends support groups, posing as a sufferer of diseases. His bliss is disturbed when another impostor, Marla Singer, begins attending the same groups. The two agree to split which groups they attend.
On a flight home from a business trip, the Narrator meets soap salesman Tyler Durden. The Narrator returns home to find his apartment and all his belongings have been destroyed by an explosion. Disheartened by his material loss, he calls Tyler and they meet at a bar. Tyler tells him he is trapped by consumerism. In the parking lot, he asks the Narrator to hit him, and they have a fistfight.