Kim and her boyfriend Matt have just broken up, but they travel together to a cottage nearby a lake to spend the weekend with their friends Eve, Dash and his wife Amber and Baker and his new girlfriend Lily. The atmosphere becomes heavy with the situation between Kim and Matt, and one of them suggests them to play "Dead Mary". Matt, Eve and Dash summon the evil witch repeating her name three times in front of a mirror with a candle. Along the night, Matt hears weird noises, is killed and returns to life, while part of the group is possessed by the fiend. Without knowing who is possessed, the rest of the group fights to survive. 无聊透顶的恐怖游戏。我的涵养得到了提升。 对Kim（由 Dominique Swaim 扮演）来说这一次本应该是一个完美的聚会和周末远离喧闹的放松时刻．她和她的好朋友们为了回忆他们一起的欢乐大学时光而开车来到了一个很远的湖边小屋游玩．就在他们在那里准备开始玩一个叫做＂死亡马利＂的残忍游戏的时候，他们意外的释放了一个恶鬼，这个恶鬼开始一个一个的支配他们．恶魔强迫他们互相对立残害，每一个人都面临着一个选择．你是否会为了自己的生存而把你的朋友撕成碎片呢？好吧．．．你会吗？
