"In the pages of Alain Elkann's latest novel, perhaps the most important book in his literary journey, the author takes on the challenge that is extreme brevity. Everything happens in one day because-as the author sees it-the dimensions of a story don't depend on its length. The tale of a brilliant bourgeois life becomes, brief as it is, a thriller. The narration is by turns ironic, comedic, realistic. And at times it grasps one with a noir-like...