An off-duty cop witnesses a double murder outside a Dublin nightclub in the 1980s, and faces an ultimatum from the vicious crime boss behind the killings. Soon he learns the bitter truth of the saying, "The past is never past. It's not even over." Fast forward to summer 2005. An informant who offers Matt Minogue a rumour about a Dublin crime boss having a senior boss 'on side'-and that the death of an undercover detective last year was connected-is found murdered twelve hours later. Inveigling his way into the cold file on the detective's death, Minogue is confronted by someone who brazenly tries to gun him down on a busy Dublin street. The past certainly doesn't appear to be over.