In letters to her idol, Brad Pitt, twelve-year-old Tina Vonlanthen pours out her heart about what life in a small Swiss border town on the Rhine is like: trouble with her older sister, twenty-year-old Babs, "who still hasn't found a man," and worries about her single father Urs, who has been so distracted lately. But it is neither spinsterhood nor Alzheimer's that the Vonlanthens suffer from. Rather, it is the small and large love affairs that they try to keep secret from each other: Babs' lover is her married German boss—and Urs' girlfriend is Caroline, a black woman from Cameroon. At the local big event, the "fish dinner," everything comes out in the open—and Tina also has some heart-pounding experiences that she prefers to keep quiet about in her letters to Brad...

Yan is a successful artist. One day he is waiting for his date Florence to turn up at his apartment. As the doorbell rings, he finds another young woman in underwear on his doorstep: his neighbor Eva! She tells him she locked herself out of her apartment and insists that he helps her. Whilst Yan is trying to enter Eva's apartment via their adjoining balcony, his phone rings. It is Florence, and she is not impressed when a female voice answers the phone. At this point, Eva's rabidly jealous boyfriend Boris returns home. Seeing Yan in his apartment, he deduces that Eva has been having an affair behind his back. Florence then turns up and Yan tries in vain to explain the situation. By chance, Florence's husband suddenly puts in an appearance. After that, it all starts to get a bit complicated.