If the ambition is to provide two hours of instantly forgettable, popcorn-munching escapism, it succeeds.

After playing with our expectations, this turns out to be a very different sort of film.

Just intense enough to provide a much-needed diversion, just lightweight enough to make you forget about it soon after it’s over. It’s not exactly “good,” per se, but it does what it sets out to do in terms of putting us on edge, which makes it … successful?

Strong acting helps the film overcome an uncertain premise and create characters that hold our attention absolutely.