During a stay at a roadside inn, long-distance lorry driver Jean Viard meets a young woman Clothilde who works there. Their friendship soon develops into a passionate love affair, even though Jean is already married and is old enough to be Clothilde’s father. Things take a turn for the worse when Jean loses his job and his wife finds out about his affair. But Clothilde’s predicament is even more distressing...

When Guillaume Valmont dies in a car accident, the only thing he leaves his wife Isabelle is his pharmacy. She never loved her older husband and she regards his death as a deliverance. At the funeral, she meets Judith, widow too, and she soon realises that her husband had been leading a double life. A short while later, the pharmacy is broken into, but nothing is stolen. Police Inspector Laforêt is put in charge of the case. Isabelle becomes suspicious when Judith offers to buy the pharmacy.

Young, handsome, dashing but cynical, Octave Mouret arrives in Paris, determined to conquer the belles of the capital.