This is a flawed but not bad movie. What starts seeming like a horror movie becomes more of a small-scale postapocalyptic, but not at all scary or supernatural, survival drama.
Residents of a small town find themselves unable to sleep. Slowly people start acting erratically and gradually Things Fall Apart.
So far, so good. But halfway through it switches gears from a horror flick to an ecological message story, as it turns out the local tapwater has become contaminated with methamphetamine, and soon all the bottled water has run out, and people look for where they can congregate where there may be some clean water, leading to struggles.
Despite the weird change halfway through, it's not bad. It's anchored by a couple of alright performances. If it had been consistent in terms of theme and mood, it might have qualified as something even a little memorable. Still, not bad.