Paul Maguire is a respectable businessman and loving father living a peaceful life, until his violent past comes back to haunt him. When his teenage daughter is taken from their home, Paul rounds up his old crew to help him find her, by any means necessary. His search for justice leads Paul down a dark and bloody path of revenge, betrayal, and long-buried secrets.

Upon completing his graduate thesis, Kevin Parson is forced to face his own dark past when he is targeted by the psychopathic Riddle Killer. Following a terrifying encounter, in which he is given seconds to confess before his car is blown to bits, Kevin meets up with a criminal psychologist whose brother was killed in a similarly explosive confrontation. Together they must solve Kevin's mystifying riddle and uncover his connection to the murderer...