Lively, twist-laden thriller set mostly in the French Riviera; there are no real "good guys" here, so you don't know how it will all turn out. The decision to film it in black & white is questionable, especially since it's more of a cosmopolitan thriller than a film noir, but other than that it's enjoyable, and Alain Delon & Jane Fonda (at her most provocative phase) certainly make one of the best-looking pairings in screen history. **1/2 out of 4.