Just yesterday, Bernard Dejonghe had everything he needed to be happy. A thriving business, a happy divorce, two part-time children, a beautiful detached villa, and even an automatic lawn mower. Today, Bernard is going through a rough patch. Harassed from all sides and homeless, he has taken refuge with his mother, whose memory is failing, in the old family caravan, parked on site 13 in alley 4 of the forgotten campsite "Le Beau Vallon." Alley 4, which its residents have christened "Avenue Louise." Bernard keeps saying he's only there for one night, but his stay could well be extended. As he rediscovers the place and meets its inhabitants, he will try to find a new lease on life.