1968年法国学运前夕，孪生姐弟伊莎贝拉（伊娃?格林）和雷奥（路易斯?加瑞尔）因为电影，与来自美国的留学生马休（迈克尔?皮特）成为好朋友。姐弟两人将马休带到家中做客时，马休得到两人同是大学教授的父母的喜爱，住进他们家中，慢慢地，他喜欢上伊莎贝拉。学运开始后大学停课，三个年轻人因无所事事在房间里玩起有

While Gilou awaits his trial in prison, Laure's group is being sidelined. They do their utmost to be given one case in particular: that of the murder