Tremors in the blood

Investigates the origins and history of the lie detector and its use in criminal cases in the United States, and the often negative consequences the lie detector has had on our modern relationship to the truth and unbiased investigation. Chronicles the story of the rookie detective, the teenage magician, and the visionary police chief who invented the lie detector, how it came to be used in criminal cases, and the story of how the three inventors went from friends to bitter enemies. Explores modern methods of lie detection and warns about how they are changing how we think about innocence, guilt, and the truth itself.