This latest installment in the “Betrayals” series of episodes tells the true stories of false identities. First, the story of Marla Olmstead, a painter and alleged child prodigy whose actual abilities were questioned after a 60 Minutes investigation. The second story is about how Timothy Barrus portrayed himself as a Navajo man named Nasdijj while writing his memoirs, and what happened when the truth about his life story came to light.