Psychiatrists are treating more people for so-called 'Truman Show' delusions -- named after the 1998 movie starring Jim Carrey as a man who spends his entire life unwittingly at the center of a fictional world that's being broadcast to millions of homes.

The startling cases often afflict successful people who develop paranoid fantasies that they're being filmed at all times and that the world that's in front of them isn't real.