Very good, solid French thriller from Director, Jose Giovanni, who also wrote the script. Police are supposed to be searching for key witness in an important trial and give the task to an out of favour cop, known for a tendency to get the job done by whatever means. The marvellous, Lino Ventura is that cop and almost as an aside he's given a rookie assistant played by Marlene Jobert. It is an early film for her but she had already been in Louis Malle's, Thief of Paris and Godard's, Masculin Feminin! Both are great in this and just as well because they are the film as we follow them around the outskirts of Paris, following clue by clue. Much of the film is clearly shot in the streets and is really well done. Being French there is always time to stop off in a cafe or bistro and these slower scenes are also very well done. This doesn't sound particularly thrilling but it is faultlessly put together and never lets up as we race from corner to corner of those charming Parisian streets.