Lump the dachshund is content living with David in Italy. But he is not happy living with Big Dog, who hounds him day and night. Lump needs a holiday. So when David announces that he's off to the south of France to photograph a famous painter, Lump positively scrambles at the chance to ride along. At the villa, Pablo Picasso greets them and is enchanted with the little dog he calls Lumpito. The feeling is mutual; from that moment on, the two become soul mates. Lump loves David. But how can he show his master, and Picasso, that he is home at last?