It's entirely possible that sending the audience out feeling lousy was intentional

The film never slows down or bores, plunging from one harrowing sequence to the next.

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?

An old-fashioned movie made with new-fashioned finesse.