In February 2002, a reporter in Oregon contacts New York Times Magazine writer Michael Finkel with a startling piece of news: a young, highly intelligent man named Christian Longo, on the FBI's Ten Most Wanted list for killing his entire family, has recently been captured in Mexico, where he'd taken on a new identity--Michael Finkel's. The next day comes another bit of news: a note from the editors, explaining that Finkel has falsified an article...