Detective of the Chicago Police, Den Lawson (Samuel L. Jackson), is informed about a serial killer who has emerged in Scotland. His signature matches that of the killer who was never caught in Chicago. Nine years ago, he murdered five women, one of whom was the detective's girlfriend. Now Lawson is heading to Scotland, where he will work with local detective Glen Boyd to find a possible connection between all the crimes. A turning point in the investigation occurs when Walker (Vincent Cassel), Lawson's former partner, appears. He has new evidence that will change the course of the search.
