While the show is a fictional crime drama, it is grounded in real-world psychological studies. Key papers and concepts that form the "paper trail" or scientific foundation of the series include: Core Scientific Foundation
: Dr. Cal Lightman (played by Tim Roth) and his team at The Lightman Group assist law enforcement and government agencies by analyzing body language and micro-expressions to uncover the truth. Lie to Me (2009–2011)
The TV series (2009–2011) was heavily inspired by the pioneering scientific research of Dr. Paul Ekman , specifically his work on facial expressions and micro-expressions . While the show is a fictional crime drama,
: The show’s protagonist, Dr. Cal Lightman, is a fictionalized version of Paul Ekman , who spent decades documenting how brief, involuntary facial expressions reveal suppressed emotions. The TV series (2009–2011) was heavily inspired by
You can find more detailed critiques of the science in each episode on Paul Ekman's official website, where he blogged throughout the show's original run. Lie to Me (TV Series 2009–2011) - Full cast & crew - IMDb