An old and poor couple, Charles and Lucie, scrape by working as a concierge and an untalented antique dealer, respectively. But one day, their dreary daily routine is disrupted by the surprising news that they have inherited a luxurious house in the South of France.
Richard is a private detective. He makes a good money from marital infidelity: the deceived husband and wife generously paid him for proof of their infidelity "halves"...
