Five-year-old Bella has a bad heart, a rubber-duck backpack, and a plan. Her mom, Chloe, a brilliant cardiac surgeon, is being pushed around by her stepfamily, her ex-fiancé and the thugs at their door. So Bella walks into a casino penthouse with fifty dollars and hires the scariest man in Las Vegas to protect them.
Lorenzo Moretti, the Godfather they call Il Diavolo, takes the job under a fake name: Enzo, the $50 bodyguard. Chloe hates anything to do with the mob and can barely stand him. But Enzo keeps showing up, the people who hurt her keep losing, and the little girl who hired him might be closer to him than anyone knows.