Since 1959 Fidel Castro's Cuba has struggled along ninety miles off the coast of Florida, treated alternately as a threat and an economic basket case by the American Colossus. Several generations of immigrants, mostly from Havana, have all but taken over Miami and found their way quickly into political and financial power. The Hedge Fund deals imaginatively with how all this plays out when the boisterous daughter of a wealthy, established St. Petersburg family, the Landaus, marries the son of a ruthless, upward-striving Cuban financier whose overnight rise depends on his connection to the...