This movie has some merit. It's pretty low budget but manages to make every dollar shine on screen. There are also a few interesting plot choices, but most of it is extremely derivative and full of tropes we've seen a million times before.
That's not the worst, though. There are some huge plot holes, and basically the entire movie hinges on extremely unlikely, illogical and/or stupid choices by characters or inexplicable 'policies' that seem to only exist to create very forced dramatic tension.