Really tightly-wound and well-paced French noir with a few notable shots and beautiful lighting. The ending is unsatisfying but that's only because it feels so normal and flat when compared to the rest of the well-developed, tense screenplay. Louis Malle was only 24 when he made this which is honestly a crime in of itself.
I saw this tequila-drunk and without any knowledge of the story of the previous two movies, but my inability to make sense of the plot here had nothing to do with a lack of prior-knowledge or an abundance of alcohol. There is no A-Plot, at least not until the last twenty minutes; there is no rhyme or reason to the way plot lines are picked up and immediately abandoned without any resolution. All of the sex scenes are so mind-bendingly vanilla I'm confused why anyone thinks these books are hot. This film is missionary position.