3 friends make a video about organize a birthday party called Project X.
Initially worried that no one will show up, they begin to involve more and more people to spread the word.
With an escalation of rumors in and around the small community, hundreds of people will show up at the party.
The party will then lead to a real urban warfare when the police arrive.
Unable to regulate such a crowd and in addition chased by a drug dealer whose drugs have been stolen, the 3 boys panic.
Funny teenager movie that in its absurdity has a credible semblance that makes it even more devastating.