In Francis Levy’s rather hilarious new novel Seven Days in Rio, an American C.P.A. named Kenny Cantor goes on vacation in Rio de Janeiro to indulge his life-long love of the sex trade. But in Levy’s phantasmagorical satire, Rio is a place where virtually every woman is a prostitute, or as Kenny likes to call them, a “Tiffany.” Levy follows Kenny’s misadventures in this comically exaggerated world, exploits that also manage to serve up a withering satire of Lacanian psychology (among other schools o’ shrinkage). Maybe the funniest American novel since Sam Lipsyte’s The Ask.