An English racing driver, Alan Colby, and his wife, Denise, were involved in a bad accident a year ago. Though they are both physically well, Alan struggles with mood swings and is increasingly violent. The couple go to the Cote D'Azur on vacation where they meet Dr. Prade, a psychiatrist who also hails from London. Prade and Denise talk about her troubled marriage, which angers Alan. After a fight, the couple reconcile and return to London.