When Montreal detectives handling a local homicide investigation reluctantly ask for an outsider's help to get inside the head of a cunning serial killer, top FBI profiler Illeana Scott joins the case. With meticulous insight, she theorizes that the chameleon-like killer is "life-jacking" - assuming the lives and identities of his victims. Her seemingly cold demeanor alienates her from the territorial local police force - she's at her best when she's working alone.

But when an unexpected attraction sparks a complicated romantic entanglement, the consummate specialist begins to doubt her finely-honed instincts. Alone in an unfamiliar city with no one she can trust, Agent Scott suddenly finds herself on a twisted and terrifying journey, surrounded by suspects in a case that has become chillingly personal.