Extremely tense, beautifully shot, generally well (if not quite brilliantly) acted, this is a clever and effective exercise on making an exciting film on a tiny budget. Even though about 75% of this kidnapping tale takes place in a two room apartment, director/writer Blakeson finds enough effective and compelling ways to photograph his tiny set, and enough sharp plot twists and reveals that any claustrophobia becomes a plus not a problem.
There are a few times when credulity is stretched, and a few plot turns that have that sense of being a 'clever twist' instead of something organic to the characters or the story (you can feel them as they're where the acting is less strong, you can see the actors strain to make them 'work'), but neither shortcoming is enough to keep this from being a highly entertaining, and even ultimately oddly touching nail-biter.
There are a few times when credulity is stretched, and a few plot turns that have that sense of being a 'clever twist' instead of something organic to the characters or the story (you can feel them as they're where the acting is less strong, you can see the actors strain to make them 'work'), but neither shortcoming is enough to keep this from being a highly entertaining, and even ultimately oddly touching nail-biter.