This movie got good reviews from reviewers. One reviewer wrote, "Don't watch the trailer. Don't read any spoilers. Just go straight to the theater and be surprised."
So, I did that. I had few expectations, and I enjoyed it very much. It was an exciting thriller with twists and turns. It happens mostly in one location, so if you like to see a lot of different scenery, you may be disappointed. But it is important to the story, so I liked it.