For this novel, Lemaitre took risks: a security passkey that says nothing of its history and a starting theme that smells read and reread. That's for the context. After we add a big dose of talent, a master at all times on the progress of the plot (in horror) and it changes everything. Because, in the genre of thriller rehashed, Lemaitre arrives to the new with the old, in the manner of an alchemist. The tone is just, while immediacy through the use of "present". We think we know where we are what causes drama in three acts, but not at all, it is wrong, brought on side roads by an author who excels in the art of ballader the player. Three acts, such as new tracks that takes us into an escalation of horror. For history, -it is too juicy in its construction, is particularly sordid. Very different from his previous beautiful novel, "Black Frames" Lemaitre proves here with "Alex" the richness of his imagination and talent to renew a hackneyed plot, with the touch of emotion and more. For it is a thriller that also touches the heart and shakes. Hats. PS: little friendly advice, do not read 4 ° coverage!