In the dark novel Fight Club, an unnamed protagonist who suffers from insomnia meets a man named Tyler Durden. After the protagonists' condo explodes, he moves in with Durden. The two form a "fight club," which allows them to let off steam through violence. The fight club catches on and turns into an anti-consumerist group that commits terrorist acts. The protagonist grows uncomfortable with the group's actions. He learns that he and Tyler are the same person and finally makes a decision that will separate himself from Tyler forever.
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