The Man in the Rockefeller Suit: The Astonishing Rise and Spectacular Fall of a Serial Imposter by journalist Mark Seal is an investigative non-fiction account of Christian Karl Gerhartsreiter, a German immigrant who spent decades assuming multiple false identities. Most famously, he convinced friends, family, and elite social circles that he was Clark Rockefeller, heir to the wealthy Rockefeller family. The book traces his life from his arrival in the U.S. at seventeen to his arrest for kidnapping his seven-year-old daughter, a crime that ultimately exposed his elaborate web of lies. Seal details Gerhartsreiter’s cunning schemes, his complex deceptions, and the eventual unraveling of a life built entirely on fraud.