Haunted by his own guilt, John O'Roark, an undercover Boston narcotics agent, and his stuttering partner, Dex, embark on a ghostly journey as they pursue an old unsolved mystery that will ultimately change their lives forever. John, a dedicated family man with two kids and a beautiful wife, blames himself for the senseless assault on his family. After which, John's only intent in life was hunting down those responsible for the attack...