Boston. In the midst of Prohibition, Joe Coughlin (Ben Affleck) is the son of an eminent city police captain. But, Coughin does not follow in the footsteps of his father, and joins organized crime, to become a smuggler who traffics with alcohol. Little by little, his ascendant career in the mafia world will lead him to become a major gangster on the Gulf Coast. In his way will cross a woman, Graciella Suarez (Zoe Saldana), that will change forever its life. But all will be in jeopardy when Coughlin’s ambition puts his family and reputation at great risk. Because … Can a man be both a criminal and a good person? Based on the novel Live By Night.