The best-selling author of ''The Other Woman'' steers a new course to L.A., where an African-American ex-con named Driver chauffeurs a limo and starts banging the African-American wife of his white boss. Trouble surfaces when he reneges on a deal to murder her likable husband and fails to return the cash advance. Crazy is a hot, sexy novel from a veteran purveyor of black lit that could help while away a long summer day. Or a long summer drive.

