在明尼蘇達州北部的“邊界水域”中，六個老朋友之間的周末露營之旅在神秘的環(huán)境下死亡后變得悲慘起來，隨著他們企圖在本集團內(nèi)揭露殺手，引發(fā)進一步的動蕩。

　　A couple on the verge of a nasty divorce attempt to sell their empty love nest and move on with their lives, separately. After a successful open house they are horrified to discover, days later, that a potential buyer didn't leave their home. While Alice is being held captive in the basement, the unannounced house guest moves in upstairs. She senses her capture is being kept a rebellious secret. She knows her way only way out if she can only get out alive.

　　兩個不善社交的少女，一天晚上無聊，轉(zhuǎn)向互聯(lián)網(wǎng)尋找恐怖故事。他們在一個令人毛骨悚然的網(wǎng)絡(luò)上找到了一個游戲，聲稱你可以用你的手機來召喚超自然...如果你輸了比賽...你失去了生命