Lie To Me - Plot

Plot

Season one opens with Cal and Gillian hiring a new associate: TSA officer Ria Torres, who scored extraordinarily high on Cal's deception-detection diagnostic, and is in turn labeled a "natural" at deception detection. Her innate talent in the field clashes with Cal's academic approach, and he often shows off by rapidly analyzing her every facial expression. She counters by reading Lightman and, when he least expects it, peppers conversations with quotes from his books.

It was gradually revealed that Dr. Lightman was driven to study micro-expressions as a result of guilt over his mother's suicide. She claimed to have been fine in order to obtain a weekend pass from a psychiatric ward, when she was actually experiencing agony (which mostly parallels Paul Ekman's anecdote in his book "Telling Lies").

For a small number of the early episodes, Lightman would team up with Torres to work on a case, while Foster and Loker would team up on a separate case. Occasionally, their work would intertwine, or Foster and/or Lightman would provide assistance on each other's cases. As the first season progressed, the cases became more involved, and all four of the main characters would work together on one case for each episode.

In addition to detecting deception in subjects they interview, Lightman and his team also use various interviewing and interrogation tactics to elicit useful information. Rather than by force, they use careful lines of questioning, provocative statements, theatrics and healthy doses of deception on their own part. In the show's pilot episode, Lightman is speaking to a man who is refusing to speak at all, and is able to discern vital information by talking to him and gauging his reaction to each statement. This approach is also taken in several other episodes (e.g., "Do No Harm").