Larry Gigli is a low-ranking Los Angeles mobster who isn't nearly as tough as he likes to act. He is commanded to kidnap the mentally challenged younger brother of a powerful federal prosecutor to save New York-based mob boss Starkman from prison. Gigli successfully convinces the young man, Brian, to go off with him by promising to take him "to the Baywatch," which seems to be Brian's singular obsession, and turns out to just be the beach. The man who ordered the kidnapping, Louis, does not trust Gigli to get the job done right, so he hires a woman calling herself Ricki to take charge. Gigli is attracted to Ricki, but he resents the fact that Louis does not have faith in him and that he has to take orders from a woman. He is also frustrated by Brian's insistence on going to "the Baywatch" and by Ricki's being a lesbian. The events take a darker turn when Gigli and Ricki receive orders to cut off Brian's thumb, something neither wants to do. Worse, Ricki's girlfriend, Robin, shows up at Gigli's apartment, accusing her of cheating. She slits her wrists and has to be rushed to the hospital. While at the hospital, Gigli goes to the morgue and cuts off a corpse's thumb, which he sends to his boss as Brian's thumb. Gigli and Ricki go back to his apartment where Gigli confesses his love, and the two sleep together. They are summoned to meet with the mob's boss. Starkman reveals that he didn't approve of the plan to kidnap a federal prosecutor's brother and scolds them because the thumb they sent won't match Brian's fingerprint; he then kills Louis. Starkman is about to kill Ricki and Gigli as well, but Ricki talks him out of it. They decide to take Brian back to where they found him. On the way, they discover Baywatch (or a similarly themed show or film) shooting an episode on the beach. They leave a happy Brian there, and at the last minute, Ricki decides to leave town with Gigli.