在某个毗邻湖泊的小镇,身形巨大的食人鳄鱼四下出没,伤人无数,成为地方百姓最为恐惧却无法除去的恐怖所在。在特瑞莎警长(伊丽莎白·罗姆 Elisabeth Rohm)的主持下,高压电网围湖建起,暂时保证了地方的安全。谁知一群盗猎者不知好歹,偷偷进入隔离区,导致食人鳄鱼兽性大发,杀人如麻,更乘机跑出隔离区。
是夜,警长的女儿克洛伊(Poppy Lee Friar 饰)岁高中同学外出露营,夜深人静之时,猥琐的大巴车司机心不在焉,开车误闯隔离区。当晚司机惨遭鳄鱼吞噬。次日清晨,无知的少男少女在湖边快乐玩耍,殊不知危险正慢慢向他们逼近。死神降临,血腥盛筵拉开序幕……
The famous writer Bernard travels to a small town nearby a lake to spend vacation out of season in the winter. He check in an old hotel owned by Enrico and his daughter Irma expecting to meet the maid Tilde, from whom he had a crush last time he visited the town. However, he discovers that Tilde has committed suicide and when he meets the local photographer, Bernard learns that she was pregnant. He becomes obsessed to find whether she really committed suicide and to guess what really happened. When Enrico's son Mario and his wife Adriana arrive at the hotel, Bernard has daydreams about the fate of Tilde.