
In the first decades of the 20th century, when life was being transformed by scientific innovations, researchers made a thrilling new claim: they could tell whether someone was lying by using a machine. Popularly known as the “lie detector,” the device transformed police work, seized headlines and was extolled in movies, TV and comics as an infallible crime-fighting tool. Husbands and wives tested each other’s fidelity. Corporations routinely tested employees’ honesty and government workers were tested for loyalty and “morals.” But the promise of the polygraph turned dark, and the lie detector too often became an apparatus of fear and intimidation. Written and directed by Rob Rapley and executive produced by Cameo George, The Lie Detector is a tale of good intentions, twisted morals and unintended consequences.
Where to WatchAll options
Availability data from JustWatch
- Status
- Released
- Production
- Corporation for Public Broadcasting
Keywords
- technology
- fear
- lie detection
- science and technology
- intimidation by police
- tool
- history and legacy
- 20th century
- forensic technology
- historical documentary
Links
Top Cast

Andre Braugher as Self - Narrator (voice)
Top Crew
Rob Rapley · Director, Writer
Omry Maoz · Editor
Emily L. Harrold · Producer
Susan Bellows · Producer
Cameo George · Executive Producer
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