Simon’s friends and family have had enough of his compulsive lying. They try to stage an intervention for him but he refuses to accept that he has a problem. All of that changes when he wakes up to a bizarre reality where all of his lies and excuses have become true. His boss is a raving drunk, his sister-in-law is in love with him and basically, everything that could go wrong does.
While everyone around him seems to think this reality is normal, his brother knows the truth and convinces him that the only way that everything can get back to normal is for him to kick his habit for good. The newest comedy from Émile Gaudreault (De Père en Flic), Menteur was a box office smash that is as funny as it is original.