S1, E1: This compelling new drama series stars Tim Roth as Dr. Cal Lightman, the world’s leading deception expert who studies facial expressions and involuntary body language to discover not only if someone is lying, but why. Based on the real-life scientific discoveries of Dr. Paul Ekman, the series follows Lightman and his team of deception experts as they assist law enforcement and government agencies to expose the truth behind the lies. In the series opener, the son of a family of devout Jehovah’s Witnesses is accused of killing his teacher after being caught fleeing the scene of her murder. Meanwhile, the team is hired by the Democratic National Committee to investigate a second case in which the Chairman of the House Ethics Committee is accused of paying for sex.