美国游客山姆隔着美术馆的玻璃窗，瞥见一宗企图谋杀，他的及时出现让凶手逃走了，获救的女子芳名莫尼卡。不久，山姆仿佛受了蛊惑似的对这宗谋杀着了迷，他决定追踪凶手的下落，这自然让他的女友朱丽娅很不快；而同时他和女友也开始接到威胁电话……...

1947. On a beach in Normandy, Madeleine, a waitress and young mother, meets Fran?ois, a wealthy, and cultivated student. They hit it off immediately, as though it were fate. But as their destinies int...