I wonder if Sean Ellis knew exactly what he wanted, the movie is very confusing and ends like that, unexplained what I just saw, who are the duplicates of the characters, are there really duplicates or everything is in the imagination of some of the characters, everything is unclear and chaotic.

If you like slow burn horror movies you may like this more than I did. When I saw it was a English movie I kind thought it would go like this. Hate to be the standard American but not much happens and the dialogue is kind of odd.

Initially I thought this was going to be a psychological thriller involving doubles / doppelgangers, but it is more like a variation on the familiar "Invasion Of The Body Snatchers" theme. In any case, Sean Ellis' direction is better than his script; the aerial shots of London, the super-slow-motion replays of a car crash, and the scenes where people appear "behind" mirrors are stunning. But the story takes too long to get anywhere, and when it does the "revelations" are fuzzy, if not a cheat. I like Lena Headey a lot as Sarah Connor in the Terminator TV series, but here she gives a mostly monotonous performance, and the other actors are in it too briefly to make much out of their roles. ** out of 4.

I watched this today afternoon having tried to finish this film on two or three prior occasions. I should have saved my time.Spoilers follow - In this obtuse, nearly plot less movie, mirrors admit doppelgangers into a gray depiction of London. The film is 89 minutes in length. It could have easily been cut to 45 or even 35. The shots and scenes drag, and for no apparent reason. The director may have thought he was creating a suspenseful atmosphere by using this repetitive technique... it was actually just boring.There have been many movies that made good use of "evil twins". Even some recent TV shows have done this (The Vampire Diaries, The Sarah Connor Chronicles, Buffy the Vampire Slayer and the Outer Limits). This film makes little effective use of its doppelgangers.Lena Headey is wasted in this flick. She's very watchable, but the director's ineptitude prevents her from succeeding. In one of the few effective scenes, she finds a dead body in her home. In the climactic minutes when another character confronts her at her place of work, she also does well there. That is not good enough, however... to little too late.I am sure Mr. Ellis thinks he is paying homage to Alfred Hitchcock, William Friedkin and other famed directors with this . Truth be told, Ellis is not fit to carry Hitch's athletic supporter.