 Three days in the lives of six friends who are nearly 30 years old, live in Grenoble, and have a rock band called the "Why Notes?". They re to play in Paris at Charles s school reunion. In getting to Paris and back, the characters interact with Aimee s ex-husband and her abrasive, cruel ex-mentor, Louise s would-be lover who turns out to have a husband, Mickey s long-time lover and her children, Bertrand s Germanic wife and their children who speak no French, and Frederic s distant mother. The band also meets Clara, a mercurial free spirit who beguiles Bertrand, then Mickey, then takes up with someone else in the band.