Everyone-from  politicians to advertisers to the man and woman on the street-speaks the  truth and nothing but the truth with no thought of the consequences.  But when a down-on-his-luck loser named Mark (Gervais) suddenly develops  the ability to lie, he finds that dishonesty has its rewards. In a  world where every word is assumed to be the absolute truth, Mark easily  lies his way to fame and fortune. But lies have a way of spreading, and  Mark begins to realize that things are getting a little out of control  when some of his tallest tales are being taken as, well, gospel. With  the entire world now hanging on his every word, there is only one thing  Mark has not been able to lie his way into: the heart of the woman he  loves.

