Robinson (Wes Bentley), a once peaceful, law-abiding school teacher, has turned into an obsessed, vengeance machine, intent on killing the man who murdered his wife (Emmanuelle Vaugier) -- ruthless Las Vegas mob boss James Dolan (Christian Slater). But to do so, Robinson must infiltrate the dangerous underworld, and devise a diabolical plan that will bury Dolan once and for all.