高中自然课女教师杰西卡（金•贝辛格 Kim Basinger 饰）被绑架了，幸好歹徒囚禁她的地方放置有一部老式的拨号电话。杰西卡慌乱之中随便拨了一个号码进行求救，她的求救电话打到了小伙子瑞恩（克里斯•埃文斯 Chris Evans 饰）的手机上。瑞恩一开始以为是恶作剧，但随后歹徒发现了杰西卡在向外求救，砸坏了电话。听到歹徒的吼叫和杰西卡惊呼，瑞恩才意识到事态严重。杰西卡在歹徒走后利用她的自然课知识重新拼装好了电话，重新和瑞恩取得了联系。通过她的讲述，瑞恩得知歹徒很快就会对她的丈夫和儿子下毒手，而杰西卡连自己身处的位置都不知道。留给瑞恩的时间已不多，何况他的手机电量有限。瑞恩必须尽一切努力去挽救杰西卡一家的性命。...
Sid grew up with his mother Arabella in a cheerful and somewhat naïve Apulian community, which was filled with affection and a great passion for cinema. After years away he returns to the land of his childhood where his mother had created a cinematic arena and this trip in his childhood memories will lead to a better understanding of her human and existential aspects....
