This film is empty, a good beginning with a suspens scene, then the film goes totally incoherent and is not believable. They filled the emptiness with over extended action scenes that have no sense at all.
In fact the story could set on a short film and didn't need these 2 hours length.
The good reviews out there are very surprising, seeing Belmondo punching a random guy is not that entertaining when it turns to be the only substance of the film... Verneuil has made way better hopefully.