"Lie to Me" is a television series that aired from 2009 to 2011. It follows Dr. Cal Lightman, played by Tim Roth, who is an expert in detecting deception through body language and facial expressions. The show is inspired by the work of Paul Ekman, a psychologist known for his research on emotions and micro-expressions. In each episode, Dr. Lightman and his team assist law enforcement and other organizations by analyzing the truthfulness of witnesses and suspects. The series combines elements of crime drama and psychological thriller, showcasing how understanding human behavior can reveal hidden truths.