No estado do Texas, a jovem Jenny (Renée Zellweger) e seus amigos se divertem na estrada em plena noite de formatura. O grupo sofre um grave acidente e um deles se machuca, obrigando seus colegas a procurar a ajuda. Por azar, encontram uma família composta por diversos malucos dentre os quais o psicopata Vilmer (Matthew McConaughey) e seu irmão Leatherface (Robert Jacks).

Six lucky contestant winners are in for the treat of a lifetime. A traveling haunted house sets up in their town and the night before grand opening, they win the chance to spend the night locked inside. Thinking everything around them is all part of the show, their minds are at ease. But it doesn't take long for them to realize that everything around them is real. Trapped inside the maze not knowing what is around each corner, these contestant winners are in a fight to get out alive. Will anyone survive? Or will they all fall victim inside the infamous Shadow's Edge haunted house, where the freaks play?