Ethan is a young, shy and rather reserved designer who has suffered from insomnia for many years due

　　故事讲述的是年轻的已婚女子Roberta深夜开车回家，不幸意外撞见一宗残忍的谋杀案，一位金发女子临死前恰巧倒在她的车前。当Roberta为了躲避残忍的凶手而逃走并寻求帮助报警之后，回到案发现场时，