In early-1970s Las Vegas, low-level mobster Sam "Ace" Rothstein gets tapped by his bosses to head the Tangiers Casino. At first, he's a great success in the job, but over the years, problems with his loose-cannon enforcer Nicky Santoro, his ex-hustler wife Ginger, her con-artist ex Lester Diamond and a handful of corrupt politicians put Sam in ever-increasing danger.
What happens when a screenwriter loses his edge, he turns to anyone he can for help...even if it's the mythical "Zeus's Daughter". And he's willing to pay, albeit reluctantly, whatever price it takes to satisfy this goddess, especially when her advice gets him going again on a sure-fire script. However, this is not the limit of her help, she also gets the writer's wife going on her own bakery enterprise, much to the chagrin of the screenwriter who has already had to make many personal sacrifices for his own help.