During a construction work, workers accidentally carry a corpse to the light of day. The body must have been lying longer at the site. However, this is only the first of a series of mysterious deaths, all of which follow a specific pattern.
With investigators in Montreal, Canada, still in the dark, senior investigator Hugo Leclair (Tcheky Karyo) has been reinforced by an old friend, FBI Profiler Specialist agent Illeana Scott (Angelina Jolie). Needless to say, the other investigators are not thrilled that an outsider interferes in their investigations. They therefore react accordingly hostile.