Pecker, an employee at a Baltimore sandwich shop often takes photos of his dysfunctional family, the crazy residents of Baltimore, places and even things around the city. One day, in his own art show at the shop, his photos catch eyes of an art dealer, and he invites Pecker as well as his weird family and friends to an art gallery in New York City and then Pecker becomes an overnight art sensation nationwide. But this also causes him more troubles than he expects.