GR5

Five years ago, Lisa disappeared without a trace on the GR 5 long-distance hiking trail. Only her travel diary turns up later. The police suspect suicide or a violent crime. Her parents and friends have not got over the loss. Lisa's mother, Karen, cannot come to terms with the fact that her daughter has disappeared. She firmly believes that Lisa is still alive.

Four friends go on a hike along the Great Route trail number 5, in memory of their friend Lisa, who disappeared five years ago during her trek along the same trail.

Four friends go on a hike along the Great Route trail number 5, in memory of their friend Lisa, who disappeared five years ago during her trek along the same trail.

Four friends go on a hike along the Great Route trail number 5, in memory of their friend Lisa, who disappeared five years ago during her trek along the same trail.

Four friends go on a hike along the Great Route trail number 5, in memory of their friend Lisa, who disappeared five years ago during her trek along the same trail.

A witness who claims to have seen Lisa at a waterfall turns up in the French Jura; indeed, Lisa's rucksack can be seen in one of her photos.