Betty (Isabelle Huppert) and Victor (Michel Serrault) are an unusual pair of con artists. She, in her forties, and he, in his seventies, share a relationship that defies definition: are they friends, lovers, or perhaps relatives? The ambiguity of their bond, brilliantly portrayed by the actors, lingers throughout the film, even up to its conclusion.
Specializing in small-time cons, Betty and Victor take on a far more ambitious scheme when she seduces Maurice (François Cluzet), a corporate treasurer, to steal 5 million Swiss francs. What begins as a meticulously planned heist soon spirals out of control as they become entangled in money laundering, plunging them into a perilous situation unlike anything they've faced before.
With sharp black humor, Claude Chabrol masterfully blends comedy and thriller elements, creating an atmosphere that shifts seamlessly between levity and suspense. The influence of cinematic greats like Lubitsch and Hitchcock is evident in the interplay of lighthearted moments with darker, more sinister undertones.
As the plot thickens, the audience is drawn into a web of intrigue where nothing is as it seems. The intricacies of the central con leave one wondering if Betty and Victor are not only deceiving their mark but also each other, sustaining a thrilling sense of unpredictability throughout.