The sleight-of-hand master explores themes of identity, honesty and the emotional cost of keeping secrets in the memoir, 'AMORALMAN.' DelGaudio's one-man show 'In & Of Itself' is now available on Hulu. "[Secrets] are like a drug," he says. "They enter your system and they intoxicate you and they get you to modify your behavior, whether you know it or not. And so it's learning to control the effects of secrecy that really were key for me, in terms of creating a convincing illusion."John Powers reviews Mick Herron's spy thriller 'Slough House.'