American horror in which a group of friends attend a horror festival designed to simulate and materialise the deepest and darkest of fears. When rumours begin to circulate of an actual murder that took place the previous year, the friends are undeterred by the bizarre events that are taking place around them. However, as the performances begin to seem more realistic, they start to become overwhelmed by the uncertainty of whether real lives are at stake. When a mysterious masked figure begins terrorising them, they soon realise their fun has reached an end and must find a way out before it's too late.