Stylish and compelling mystery thriller along the lines of the CRIMSON RIVERS series, staring the consistently likable Jean Reno as a retired detective recruited back to assist a young Captain who is investigating a series of cruel murders of female Turkish immigrants which are suspected to involve a cadre of Turkish terrorists known as the Gray Wolves; meanwhile Arty Jover very well portrays a young amnesiac woman married to another police investigator who learns disturbing truths about her past  with both stories eventually merging in a thrilling climax that works despite some inherent preposterousness. Film is very well directed by Chris Nahon who lends a great deal of visual stylization to the storytelling; the storyline is somewhat convoluted but nonetheless becomes quite engrossing that the film works as an interesting and entertaining thriller, enhanced by impressive effects and an atmospheric musical sound design (five composers are credited). A winning example of style over substance, film is very enjoyable for the undiscriminating.