In one of those spur-of-the-moment decisions, Danielle "Dany" Lang, a meek English secretary with an international advertising agency in Paris, drives to sun-kissed French Riviera to blow off steam, after seeing her boss, Michael Caldwell, and his wife, Anita, off at the airport. The plan was to drop them off and drive Michael's car back to the house; however, as soon as Dany sets foot on the picturesque resort for the first time in her life, a series of chance encounters with perfect strangers, who claim that they recognise her, begin to mar her ideal weekend. Now, there's a strange noise coming from the boot of the car. Is the lady in the car going mad?