故事发生在70年代的法国，西格蒙特（乔·达里桑德罗 Joe Dallesandro 饰）拥有一个幸福美满的家庭，太太贤惠温柔，女儿活泼可爱。因为公事，西格蒙特被派遣到巴黎出差，在那里，西格蒙特第一次领略到了大张旗鼓的色情场所带给他的震撼和诱惑。穿着暴露的法国女人们姿态优雅的在公寓里抽烟喝酒，供男人们选择，一个名叫狄安娜（西尔维娅·克里斯蒂 Sylvia Kristel 饰）的姑娘吸引了西格蒙特的注意。
狄安娜和西格蒙特共享了激情四射的一夜，这一夜让西格蒙特久久无法忘怀，之后，他们还相见了很多次，随着时间的推移，西格蒙特竟然付出了真心，狄安娜亦是如此。

Carlos is a young student, just 21. Nice or annoying as he likes, enjoys provoking and transgreding. In the night he goes out to meet his friends in the Kronen, a bar. Every situation can be taken a little farther. There are no limits, no accepted barriers. And more each time, each adventure is chained to the next, as if it were a continuous night. A long description of people: grandfather, parents, sister, girlfriend, friends. And, among that, the obscure will of living every minute as if it were the last one. But something which happens puts Carlos and his friend against a reality they have been trying to ignore.