At the night of his 21st birthday the Francetti family Don Uncle Paulie sends out hitman Jackie Estacado on a job. The hit turns out to be a trap and Jackie finds that Paulie wants Jackie dead. Later the same night Jackie is posessed by The Darkness an ancient demonic power that gives Jackie spectacular powers. The story revolves around Jackie and Paulie fighting over the future of the Francetti family and of Jackie's search for light and love in a dark and violent world.