Lie to Me - Season 2 - Eps 12: Sweet Sixteen
An Irish terrorist comes to Dr. Lightman to find out who killed his wife and daughter seven years ago, which reveals secrets about Lightman's relationship with Dr. Foster and his past job working counter-terrorism for the government.
About Lie to Me

Title: Lie to Me
First Air Date: 2009-01-21
Last Air Date: 2011-01-31
Status: Canceled
Rating: 7.9/10 (from 1531 votes)
Language: EN
Seasons: 3
Total Episodes: 48
Network: FOX
Genres: Crime, Drama, Mystery
Production Companies: Imagine Television Studios, Samuel Baum Productions, 20th Century Fox Television
Synopsis
The world's leading deception researcher, Dr. Cal Lightman, studies facial expression, body language and tone of voice to determine when a person is lying and why, which helps law enforcement and government agencies uncover the truth. But his skills also make it easier for him to deceive others.
Cast

Tim Roth
Cal Lightman

Kelli Williams
Gillian Foster

Monica Raymund
Ria Torres

Brendan Hines
Eli Loker

Hayley McFarland
Emily Lightman