In the city of Nice, in the beautiful and sunny French Riviera, a sniper cold-heartedly assassinates four people in less than 48 hours. There isn't an obvious connection between the victims, but since they are all upper-class society members, chief-commissioner Carella senses a lot of pressure to catch the killer fast and to prevent further murders from happening.
It's been such a long since I watched a good old-fashioned, authentic giallo! Okay, so "Without Apparent Motive" is French instead of Italian, and a sniper rifle isn't exactly a traditional giallo murder weapon, but still I feel it qualifies as a bona fide giallo! After all, many delicious trademarks are well-represented, like the convoluted whodunit plot, a mysterious but merciless killer, a struggling police commissioner and many gorgeous women. Dominique Sanda, Carla Gravina and especially Stéphane Audran look lethal and incredibly seductive in their roles.
Although named "Without Apparent Motive", the assassin certainly has a motive for the murders he/she commits, and the gradual and suspenseful revelation of the motive is definitely the strongest quality of the movie. Trintignant plays in his very own typical love-or-hate-him style. I always wonder if he just acts arrogant, or really is arrogant. The locations and scenery are amazing, the great Ennio Morricone wrote another fantastic score, and many sequences are masterfully photographed.