This sour satire records how narrow-minded, perishable and prejudiced human relations are. Lili, an open, good-hearted, but clumsy girl gets a rusty Renault Gordini from her uncle living in France. She wants to learn driving, but makes horrible and perilous mistakes behind the wheel.

Interpol detective Wilton, known for his powers of deduction, is set on a gang of bank and jewel robbers who are up to mischief in Marseille. Despite some false leads, he can shed light on the murky affair. A conventional but relatively exciting crime film that strives for atmospheric density but is not immune to the clichés of the genre. Charpentier's trivial novel is the first crime thriller in a series that pretends to be the publication of Commissioner Wilton's diaries.