一群科學家要對「惡魔之巔」的水山活動進止研讨，根據活動數據「惡魔之巔」远期將會爆發，小鎮正正在研擬疏散計畫，但老班堅決没有撤離。好没有随意纰漏明蒂十多歲的女兒妮可說服老班，一家人開著車趕緊下山，此時水山爆發了！從水山噴射出來的没有只是岩漿跟水球，還有當年吃人的居平易远，他們渴视肉體獲得更死！
一位年沉的女医师苏珊菲勒，其挚友人果简朴的足术而堕进晕厥状态；然则正在她效劳的医院中，也有许多相似的病人，正在经由简朴的足术后显现晕厥， 那些病患被支至其余一机构聚散照应，然则苏珊菲勒收现事宜并没有如她所念......
Several young couples travel to a private island for a mysterious training retreat that promises to strengthen their relationship. However, during the Retreat, the heroes encounter an ancient demon - a Succubus. This monster feeds on the life energy of people, taking on someone else's appearance and provoking victims to show the worst qualities and do terrible things.
