In Baton Rouge, Louisiana, Taylor, her boyfriend David and their friends Brice and his girlfriend Naomi travel together on vacation to spend a couple of days with their friends Sharley and her boyfriend Howard in the house of his family. On the next day, they see a missile exploding near the house and soon they learn that the USA is under a biological terrorist attack. Out of the blue, a hostile dog comes to the real estate and they decide to lock the door and go sleep. On the next morning, the dog is still stalking them and Brice kills it with a baseball bat. David decides to take the dog to the CDC and he discovers that the locals have transformed in sort of zombies. The friends are attacked by these zombies and have to find a means to escape and survive the hordes of zombies. Will they survive?

The amazing true story of Frédéric Bourdin, who after having plundered all the centers for runaway minors and deliquents in Europe, even thought he has come of age, now passes himself off as Nicholas Barclay, a 13-year-old American who had vanished three years ago. To his astonishment, Nicholas's family welcomes him like their son, leaving Interpol and the FBI aghast. It is the beginning of a race against time for the investigators, family and Bourdin. But who is manipulating whom? And who is Frederic Bourdin in reality?