快乐到死

　　薇吉妮亚(布鲁克亚当斯)与老公(杰夫海恩嘉)为了想生个孩子，用尽了一切办法，在求教过一位专门治疗不孕症的专家(詹姆斯凯伦)后，最后终于如愿以偿地成功受孕。 原本满心期待当妈妈的薇吉妮亚，却发现自己的身体起了不该发生的诡异变化，当夫妻俩发现这个尚未出生的孩子竟是项疯狂实验的成果时，却为时已晚，薇吉妮亚腹中的「胎儿」已成了两人无法摆脱的恶梦…

　　Two sisters living separate lives on different continents are reunited on a Mediterranean Island. The two barely have time to bond and revive family ties as Kate, the elder, meets a group of locals and agrees to an exciting ride on a hot air balloon. But disaster strikes and as the result of a freak accident, the balloon is carried far out to sea. Their cell phones out of range, and the balloon running out of gas, Kate and her friends are battling for their lives. While, back on land, the younger sister, Liz, has become an unwanted "material witness" to a crime. Matters then take a dramatic twist, one that will mark their lives forever.

A couple near the end of their marriage begin to encounter supernatural forces that cause them to fight for their lives.