After his twin sister is killed in an accident, her distraught brother jams her corpse in a cello case and hits the road.

Jean-Marie Fayard is a young examining magistrate in a large provincial french city. He belongs to that generation of judges who are endeavoring to re-adapt the notion of justice to our changing times. His methods are not agreeable to every one. Criticism and pressure are brought to bear upon him but he is aware of his value, professionally, and refuses to make any concessions. He follows an unwavering course. He uses dynamic methods and takes uncustomary initiatives. He behaves like a crusader, a battler, whence the nickname given him by the reporters : the sheriff.

A disaffected media executive spends his days watching violent programming on the television screens in his office and his evenings neglecting his frustrated wife at home. The monotonicity is disturbed when he is contacted by an old friend who confides in him he is being threatened by mysterious assassins.

Anne is at a crossroads in her life. Long married to a successful, driven but inattentive movie producer, she unexpectedly finds herself taking a car trip from Cannes to Paris with Jacques, a business associate of her husband. What should be a seven-hour drive turns into a carefree two-day adventure replete with diversions involving picturesque sights, fine food and wine, humor, wisdom and romance - reawakening Anne's senses and giving her a new lust for life.