When the city of Boston is terrorized by a mass murdering psychopath who is leading a militia of men into a war on citizens rights to privacy, its up to the fabled, yet broken Detective, Frank McKenzie to bring them to justice.What turns out to be a routine terrorist attack soon becomes a deadly personal game of cat and mouse between Conner Chase and Frank McKenzie.McKenzie has never been one for fancy suits or ties. Conner on the other hand is more of a sophisticated killer when it comes to dress code. One things for certain, both men are Casual Killers.