I was totally surprised at how great this film.You could feel your paranoia rise as the film went on and as you gradually learned the details of the real situation.

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

A great movie, one of the best of this year. There was a bit of confusion at one point in the plot, but nothing serious.

The storyline feels a little thin and moth-eaten in parts but this sequel is plenty of fun.