Plot hole: By the end of Season 3, it is revealed that Dr. Costa was the Carver. It is important to also note that the first introduction to the Carver came around mid-Season 2, and there were more than a handful of victims - including Dr. McNamara himself - all in the Miami area. One huge discrepancy during that initial time period though is that Dr. Costa was living in Atlanta, running his own plastic surgery firm (we know this because Julian flew him in from Atlanta to work on Dr. McNamara). While not impossible, it just doesn't seem logistical for Dr. Costa to commute back and forth from Atlanta to Miami to commit these crimes, all while still working/running his practice in Atlanta, especially in such short spurts of time.
Nip/Tuck (2003)
1 plot hole in Season 3 generally - chronological order
Starring: Joely Richardson, Dylan Walsh, Julian McMahon, John Hensley
Genres: Drama
Factual error: (Season 4) During the episode where Ms. Grubman and Christian are talking in his office and he turns around a few seconds later to see she had died while in her wheelchair, her head and posture is still straight up and forward - near impossible. Common physics tells us that upon death, her head would have either drooped backward, downward, or to one of her sides.
Kimberly Henry: Death is just the ultimate orgasm of life.
More trivia for Nip/Tuck
Question: What is the song playing at the end as Matt cries alone in his room and Nanette shoots herself?
Chosen answer: "So Damn Beautiful" by Polaroid.