It's refreshing to watch a movie that gives the impression someone actually wrote a script about a story they wanted to tell and the story makes sense. It doesn't happen so often nowadays when most movies are self-indulgent; open-endedly boring or patronizing.
Delon and Trintignant, two of the biggest French stars of the 70s are respectively Borniche (the cop) and the killer-robber Buisson. The story is told in a linear way - thank you! - without special effects and only one car chase, short and realist enough.
Borniche is a top detective charged to find Buisson, a cold-hearted, pitiless criminal who escaped from prison. Loosely based on a real story - the chase lasted several years - Borniche is a sort of good cop, interested only in justice and reprimanding is "bad cop" colleagues, while there isn't much justification for Buisson violence. Therefore, the moral compass isn't too skewed.
I watched this in French and being my first Delon/Trintignant film, I was disappointed only by their ordinary, unsexy voices. Trintignant was especially chilly as the criminal, Delon convincing as the quiet cop, violence was few and far between and even more shocking because shown in all its meaningless brutality.