部分http资源不能在https下加载，请将网址切回http.
观看小提示:[DVD标清版] [BD超清版] [HD高清版] [TS抢先版:不清晰]
类型：恐怖 地区：瑞士 年份：2014
Six college students film an unusual experiment shortly before graduation. They visit an abandoned military bunker in the Swiss Alps and take on dares to test their courage and confront their fears. What begins as a supposedly harmless foray gradually turns into a terrifying experience – in which they can no longer distinguish between the game and reality.