The film is good, except for the ending, which is abrupt, unexpected, in other words, the film is not complete, it lacks a clear outcome to what is seen in one hour and 42 minutes. Belmondo, at only 28 years old, plays impeccably, he's very good, Michel Constantin, in a small role of a villain, he's exceptional, and Christine Kaufmann and Béatrice Altariba are beautiful and convincing. The best chapter of the movie is the one in prison.