Helen McLeish, unmarried at 34 with only her little red car to love, goes to France to visit her sister and brother-in-law. En route, and on arrival, things happen to her and the car which has been used as another kind of vehicle- to smuggle diamonds. Fortunately there's an attractive repairman- M. Paul Pennard. The reader is in on the somewhat insubstantial story from the start and at best it's pleasant, evanescent entertainment.