I've read couple reviews of this movie, and they all seem really dissatisfied with it. I really, really liked it; I like how the camera follows Laura's perception of time and space, I love the ending, I love the whole psychosis thing going around. I was actually quite surprised that the criticism was so abundant, the movie just illogically follows her irrationality and altogether it just makes sense.
While the single take is adventurous, and deserves praise, it feels gimmicky. I feel it hinders the story more than anything. Since it was shot over 4 days, I suppose it's not a true single take and that negates everything going for it. Why limit yourself in technique, when you're already taking advantages. The story itself is weak. And while it does provide some scares, it ends up being cliche.
A movie in constant battle with itself: Cheesy sound effects with a beautiful and elegant score, pointless scenes of Laura looking around, as if to justify the film's length and glimpses of a story that feels too elaborate and too loose at the same time. Never the less it keeps the tension for the most part and for such an inexpensive movie, obvious cuts or not, it is still a technical marvel with amazing atmosphere.
One of the most tense one hour twenty minutes, I've ever seen in a cinema. When the guy in the behind me moved his feet, I jumped! I'm not convinced that the film was shot in a single shot. The storyline would have benefited, from a wider view point than Laura's. But this was a skilled piece Of filmmaking. Shows what you can do with digital camera, $8,000 & a lot of imagination!
Actually i'm not quite sure this movie has been made with a single continuous shot. Of course it looks like one. But the movie may have been cut at many times. (I'm thinking about their entering in the house, the camera's flash scene and, one heck of a proof, the post-credit scene...) Nevertheless, the movie's fine.