Secretary at a Paris fashion agency borrows her boss's car for a weekend drive down the Mediterranean coast, but her lighthearted holiday is fraught with trouble after she continually runs into complete strangers who appear to know her. U.S.-French co-production adapted by Sébastien Japrisot from his novel, with assistance from director Anatole Litvak, is beautifully designed and mounted, with attractive photography by Claude Renoir in mod-popping shades. Samantha Eggar has never been better (nor lovelier) than she is here, confusedly finding herself in turbulent situations yet determined to figure out what's really going on. Japrisot and Litvak lay on the paranoia undercurrent fairly thickly, though they also play fair with the viewer and give us a journey well-wrought with engrossing entanglements. It's also one of the chicest mysteries to mark the end of the 1960s, with gorgeous locales, cars and costumes to hold the attention whenever the script gets too chatty. **1/2 from ****