"Lucky Tom" Sullivan is a working-class Irish-American Uber driver from Somerville, Massachusetts who unwittingly gets caught up in the local drug (Oxycontin) trade. When Fran ois Laax, a twisted business major at Harvard, introduces fentanyl into the supply chain it causes a spike in fatal drug overdoses. Cambridge Police assign Lou Del Vecchio, an Italian-American detective from Boston's North End to the case and the chase is on.