Nowhere Man, on UPN
IMDb; Retro Junk; SadGeezers; TV.com; TV Tropes; Wikipedia

This show was about Thomas Veil, a photographer who went to the bathroom in a restaurant where he was dining with his wife after an exhibit of his latest photographs, and when he came out, he found someone had stolen his life. There was absolutely no record of his existence; no one he'd ever known, if they could even be found, would claim to know him. Not even his wife, Alyson (played by Megan Gallagher). But he wasn't just lifeless, he was constantly on the run from whatever secret organization had stolen his life. Why had they done this to him? It was about one of his photographs, called "Hidden Agenda" (see below). The only problem was he didn't have a clue what the picture he'd taken was even about, what it meant. He did, however, have the negatives, and the organization wanted them. Of course, while running from them he was also trying to find out who they were and why they wanted the negatives and what it was all about. Unfortunately, I didn't get a chance to see the last few episodes, so I don't know how it turned out. So I definitely plan to get the series on DVD someday, at which point I'll probably write a bit better review.