Carla's sister accidetally falls off a cliff when the railing becomes loose while Carla's boyfriend takes photos. She has a hard time getting over her death and keeps having visions of her sister yelling at her for not saving her. It seems that everytime she gets next to a edge of a high area, she gets terrified. She then starts to take a class with other Acrophobiacs. Then the people in the group start getting killed one by one. She starts to suspect that someone wants her never to get over her fear and that the loose railing was meant for her. 译文(3): 卡拉的男朋友在拍照时，栏杆松动，卡拉的妹妹不小心从悬崖上掉了下{资源屯-ziyuantun.com}。她很难从死亡中恢复过来，一直梦见姐姐因为没有救她而对她大喊大叫。似乎每次她靠近高处的边缘时【ZiYuanTun.Com】，她都会感到害怕。然后她开始和其他恐高症患者一起上课。然后，这群人开始被一个接一个地杀害。她开始怀疑，有人希望她永远无法摆脱恐惧，而松动的栏杆是为她准备的。
