A quartet of Parisians embark upon a guided hike in Corsica and end up working through the sometimes comical chaos of their individual lives.

Ten years after their disastrous walking holiday in Corsica, four friends – Cora, Nadine, Mathieu and Louis – decide to spend the summer together on the Côte d’Azur. To their surprise, who should they meet in St-Tropez but Eric, the guide-from-Hell who transformed their last holiday into a nightmare and whom they swore never to see again...