Jerome, 35, is a yacht salesman in Nice. But if you listen to him, in his spare time Jerome is also an astronaut, a karate world champion and a close friend of Miss Universe. As a matter of fact Jerome is a compulsive liar: he lies to everyone about everything! No one believes him, but that doesn’t prevent him from accumulating more lies. But one day Jerome wakes up to find out that all his lies have come true... and it’s just the beginning of the troubles ...!

At 9:00, Laurent receives a worrying text message. 9:01, his mobile's stolen. 9:30, his son disappears. 10:00, his house burns down. 10:15, his wife leaves him. 10:30, his company goes bankrupt. 11:00, he's in custody. The day's got off to a bad start.