In the heart of the Pyrenean summits, a high mountain guide is killed in a paragliding accident... which turns out to be a crime with a good deal of premeditation. Who wanted to get rid of this mountaineering legend, settled for ten years in this small village in the Basque Country where he lives with his wife, Ariane, a rich heiress of the valley? Unless this romantic love story hides a strange and elusive couple, ready to do anything not to let the passion erode. From steep trails to high altitude huts, Mongeville and Valentine put on their mountain boots for a dizzying investigation.
