Sitting in the bookstore one afternoon, Arthur Trezeguet receives a surprise: a restraining order from his spiteful girlfriend, Sarah. Uprooted from his comfortable existence, he is forced to leave home and start over from scratch in a new city. Dive is the story of a young man trying to eke out a living and find meaning in an age when none seems to exist. Months after arriving in Pittsburgh, unemployed and penniless, Arthur is forced to take a job at Knights Motel, a haven for those who exist on society's fringes: hookers and thieves, thugs and madmen, drunks and the dispossessed. Eager to better himself, he soon falls for Susan, the elegant wife of a high society businessman, who spends her evenings downing scotch and sodas and lamenting her passionless life. As their mutual attraction blossoms they plan to skip town and run away together. But there are problems. Arthur's new girlfriend, Julia, is pregnant. Susan is feeling mounting guilt over leaving her husband. Dive chronicals Arthur's attempt to carve out a niche in the world before he becomes one of the lost souls who wander through his life on a daily basis.