The Chameleon

"Frédéric Bourdain is a Frenchman in his early thirties who has spent much of his life impersonating kidnapped or runaway teens...At some point, Bourdain's story gets intertwined with that of Nicholas Barclay, a teen who went missing in Texas in 1994. After that, the story proceeds like the craziest episode of Law and Order you've ever seen.." He isn't joking...amazing story here via kottke.org