本片根据一桩真实事件改编。在1975年11月5日晚上，在亚利桑那州的荒野山林中，五位伐木工人宣称亲眼目睹他们的同伴崔维斯（DB史威尼饰）被天外幽浮给绑架了。镇上居民认为他们头脑有问题，当地警长（詹姆斯嘉纳饰）则认为他们是在掩饰一桩命案，这种说法是要妨碍警方调查。然而，事情的真相自然唯有当事...

　　Kathy is married to Peter. Now she can't help but wonder how things could have been if she got together with her old boyfriend, Tom. Being married prevents from doing that so she asks her friend, Emily to go to him and see if she can sleep with him then tell Kathy how it was. When Emily tells Kathy that things were awesome, their friendship suffers, at the same so does Kathy's marriage. Things get even more complicated when Emily learns she's pregnant, and she's not certain if it's Tom's or her boyfriend, Elliot.