Plot Summary:The differences in legalities and cultural mores of French and Americans regarding sex, love, marriage, religion and family bonds are presented through the interactions of two families related by marriage. American Isabel Walker heads to Paris to visit her half-sister, poet Roxeanne de Persand, who is early in the pregnancy of her second child. Isabel arrives to find that Roxy's French husband, Charles-Henri de Persand, has just left Roxy, the sisters both eventually further learning that it is because he has fallen in love with another woman, who is herself married. Roxy and Charles-Henri deal with their break-up, which Roxy does not want but must face the legal consequences of, including determining the ownership of what may be a valuable French painting that has been casually in the Walker family for years, but which Roxy has had in her possession since she got married. Meanwhile, Isabel begins to explore all that France has to offer, which includes concurrently embarking on sexual relationships with two men, including one with Charles-Henri's older maternal uncle, the wealthy and well-appointed Edgar Cosset, who is himself already married and who is using the same play-book on her that he has on countless women before her. As groups and individuals within the two families disagree and argue about certain issues they are facing, it does not necessarily affect other issues and relationships between the two families based on their priorities and those cultural and legal standards.
由于受不了严谨的校纪校规，女孩伊莎贝尔（凯特·哈德森 Kate Hudson 饰）毅然离开了电影学院，过上了她所渴望的自由生活。伊莎贝尔的姐姐罗茜妮（娜奥米·沃茨 Naomi Watts 饰）定居于法国巴黎，身怀六甲的她惨遭画家丈夫查尔斯（梅尔维尔·珀波 Melvil Poupaud 饰）的背叛，愤怒的罗茜妮决定离婚，她给伊莎贝尔写了一封信，希望自己的妹妹能够来到自己身边，支持和陪伴她度过这一段艰难时期。 一次偶然中，伊莎贝尔结识了名叫埃德加（蒂埃里·莱尔米特 Thierry Lhermitte 饰）的法国外交官，尽管埃德加已经是一个七十岁高龄的老人了，但伊莎贝尔依旧拜倒在了他的慷慨大方和风度翩翩之中。尽管伊莎贝尔和埃德加之间的恋情并不被他人所看好，但伊莎贝尔依然坚持着自己的想法和信念，直到某一日，她发现，埃德加竟然是自己的亲戚。
