A group of employees of Carnival traveling along the country to show the world their performances. Stopping to feed in a rural area, they are acostaţi and kidnapped by a gang of evil clowns. Are taken to a huge warehouse where a group of clowns, tells them that they are to participate in a game, a game in which you must fight for survival for 12 hours. Shortly after, the five will realize that these clowns are not the only threat. They will have the chance to get out of this game known as 31?