Wealthy Elvira Hertzfeld and clarinet-playing homeless man Paul Heisenberg would probably never have spoken to each other if Elvira's elegant dog Minou hadn't fallen for Paul's good-natured St. Bernard Sunny. But when the enthusiastic Minou pulls her mistress to the ground in the pedestrian zone, Paul takes care of Elvira, all cavalier. It is the beginning of a tender friendship in which both gradually put aside their reservations. Elvira even decides to offer Paul, who is at a loss for a place to sleep, the garden shed in her villa as emergency accommodation.