Good concept, poorly executed.

While it doesn't offer any answers, it both thrills and makes you think.

The film never slows down or bores, plunging from one harrowing sequence to the next.

I enjoyed watching this film and would recommend other to give it a try , (as I am) but this movie, although enjoyable to watch due to the better than average acting fails to add anything new to its storyline that is all too familiar to these types of movies.