Lavis, a Vietnam War veteran who has just returned from the battlefield in Vietnam and suffered from severe insomnia, lives by driving a night taxi in New York City. Lavis is a socially maladaptive man who relies on pornography to dispel his insomnia, but seeing the corruption and darkness of the metropolitan nightlife every day makes him more lonely and empty. Just as Travis was bored, a girl named Bessie stepped into his eyes. In his opinion, Bessie is different, she is the incarnation of an angel. Bessie is a staff member of the campaign center of the presidential candidate Pastine. In order to get close to her, Lavis went to the center to volunteer and asked Bessie to associate with him. But because the gap between the two was too big, Travis took her to a porn movie on the first date, and Bessie ignored him since. Lost in love made Travis feel pain, loss and confusion. While continuing his boring and boring life, he decided to use actions to prove his meaning.
Lavis bought a gun from a black market merchant. In the process of preparing to assassinate Palantan, he met the underage prostitute Iris and decided to help her escape from the den. After failing to assassinate Palantine, Travis came to the brothel where Yiz was located, and killed the old bustard, landlord and prostitutes one by one, and was also seriously injured. Under the propaganda of the media, Travis, who was about to die, became a hero who saved the prostitutes, and his deeds became news in New York. One day after healed, Travis found Bessie walking into his taxi, but this time he rejected Bessie's favor and disappeared into the feasting streets of New York as usual.
