Nick and Charlotte are a married couple. As both are more than busy earning money, there is no time for love or sex - only Tuesdays. Soon, Charlotte finds a lover, Luis, who is an unsuccessful, married artist. He and his wife Eva also have no time for sex, as Eva has to support her artist and the couple's 3 and 6 year old kids by working in a restaurant. The secret affair of Luis and Charlotte lasts quite a while, they decide to spend a romantic week in Venice, Italy. But by accident, Eva finds out about the couple and their destination. She forces Nick, Charlotte's husband, to join her on a trip to Venice in order to restore her marriage as well as his. On the way from Munich, Germany, where the first half of the story takes place, to Venice, Eva's car breaks down somewhere in the Alps, so she, Nick, and her two children walk and hitchhike the rest of the way. They arrive without money, passports, credit cards, their clothes torn and burnt, on a Friday evening, which means that they have to spend the weekend without any support from the German embassy.