Mountain guide Rémy is a nonchalant dilettante. He takes rich tourists safely up summits and sleeps with his clientele–until one of them changes his life. The mysterious, fascinating Laure stirs an unknown feeling inside him. As Rémy pushes her up ever harder routes, the two share intense moments of danger and ecstasy. Unable to live without her, he decide to join her in Paris. But in the big city, Rémy wilts, becoming a stranger to Laure, who kicks him out. They each return to their lives, but there's a third wheel in their affair: the mountains, a powerful bond that will reunite them.