Lie to Me S02E19 Pied Piper

Based on the real-life scientific discoveries of 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.
The season opens with Cal and Gillian hiring a new associate: former TSA officer Ria Torres. Ria scored extraordinarily high on Cal's deception detection diagnostic, and is 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.