This is quickly becoming one of my favorite shows. It's like a combination of House and private detective shows.
IMDB Page:
http://www.imdb.com/title/tt1235099/Tim Roth plays Dr. Cal Lightman, a guy who really understands nonverbal gestures. He doesn't really care what people are saying, only how they are saying it and what they're doing as they're saying it. Because of this, he can detect when people are lying. He gets hired by organizations that need to determine whether an employee, inmate, etc. is telling the truth about something. Whenever a character makes a particularly important gesture, it shows pictures of famous people who made the same gesture in similar circumstances (they like to show Bill Clinton a lot).
So far, most episodes are Tim Roth's character investigating one thing while his lackeys investigate something else.
Maybe I'm biased because I've taken several courses on nonverbal communication, and the subject fascinates me, but this show has been awesome so far. It has about the same amount of plot arc as House does, but it makes sense that way.
Has anyone else been watching this show? If you're not watching it, I highly recommend seeing at least the first episode.