That was an excellent one.

A film with more than the usual spoiler issues. Talking about it in any detail feels akin to handing you a gift-wrapped present and saying, "I hope you like it -- It's a thriller about a diabolical secret experiment."

Great story, amazing characters, superb action, enthralling cinematography. Yes, this is something I am glad I spent money on.

Worth seeing just to witness how winsome it is.

First of all, if you've already watched the trailer then this movie will hardly be interesting to you.One of the things I really hate is when I see a good idea ruined by a below-average realization. And this is one such case.The idea is very original, which is very hard to achieve nowadays. The acting is decent, even though the main actor is not the right guy for this role. The plot is mysterious and well designed, if we ignore certain cliché and predictable moments.There are two stories here. The second one begins in the middle of the film and fills the holes of the first story. The mystery unfolds and you wonder what will happen next. And then the movie is over. Just like that. This story has no ending! No point!Given that, this is an average movie at best. Considering that this is something unfinished, I recommend that you skip this one and save yourself some time.

It's a movie that starts like many. You start to think it's a classical ghost plot. Anxiety, sensation of being observed, thunders and shower scenes. It's freaky, it's mysterious and you wait for the moment you are waiting for... Until you discover that the scenario is made such a brilliant way it literally blows your mind. I haven't been surprised by a movie for a long time and this one was a perfect choice. Apart from this excellent story, the images are beautiful and give a feeling of "being there" during the whole movie. Mezmerizing actresses, some cold shivers, a little bit of humor and an unexpected ending. An absolute work of art.

One of the best thrillers I've seen. It kept me intrigued until the last minute! My heart started to beat faster and I didn't want it to end! It was unpredictable through the whole story! Very good acting, script and directing!!! Unusual story and one where you cannot even imagine what will happen next! The views were constantly shifting so you could not decide who is the one to blame! Nice images which suited to the events that were taking place. Outstanding music plays an important role in the story since it adds even more suspense. The feelings it provoked reminded me of other such good movies I had seen (spanish, too): Sleep Tight, and the unforgettable The Skin I Live In. I consider all of them a must watch!

Absolutely loved this movie. How do I know this? Because in parts I felt nauseated and slightly sick to the stomach with suspense. The desired effect I would say.I've been trying to think of another movie comparable with this one. Can't come up with it. Only one it slightly reminded me of, and I thought that would never ever happen, was the French masterpiece "L'Appartement" which had a similar mindbending way of suddenly completely changing the narrative. Maybe the later "La migliore offerta" but purely for the mystery, heartache and sheer beauty.This is what experiencing great movies is all about. Highly recommended 8/10