Marinette and Adrien, two Parisian teenagers, are entrusted with powerful jewels in order to transform into superheroes Ladybug and Cat Noir. But neither hero knows the other's true identity — or that they're classmates!

Less and Less, Luc Moullet’s 40th film, concerns development and expansion, from 1968 to 2010, of the devices based on computers, automats, interactive terminals and others that can be found everywhere.