In this early Lawrence Block thriller five characters are thrown together in a plot to assassinate Fidel Castro. Interwoven in the assassination story is the story/biography of how Fidel comes to power in Cuba. Written in 1961 shortly before the Cuban Missile crisis Block captures the time period and doesn't shy away from pulpy language.
I don't think anything I can write will be as compelling as this from one of the five, a murderer named Turner.