I've spent quite a bit of time in that part of Texas, i.e., The Valley, Laredo, and other boarder towns. This movie epitomizes those places, and surrounding areas. Spoiler Alert: the movie does NOT have a happy ending, which is why I liked it. It definitely is no mans land down there, and I found the movie pretty much true to life, a doggy dog existence. In the real estate business they say "Buyer Beware", if your plans are to travel down there; Traveler Beware.
Another reviewer, about a year ago posted, Watch it when you can focus uninterrupted.. He couldn't be more spot on.