Detective Billy Taggart (Mark Wahlberg) is booted out of the NYC Police Force under mysterious circumstances relating to a shooting in a low-income housing project, which occurred before the movie begins. New York City Mayor Nicholas Hostetler (Russell Crowe) hires Taggart to tail his wife, Cathleen Hostetler (the Beautiful Catherine Zeta-Jones. Needless to say, the Mayor believes his wife is bedding another man - aka cheating. Or is there a bit more to the quest? Along the way, Taggart uncovers a big-money, web of conspiracy involving corruption.