Resolution can be described, if you need a label, as a neolovecraftian movie; it depends more on personal struggles and atmosphere than cheap thrills or special effects, while also building an engaging story centered around the characters. Within a rundown house, we observe a power struggle between Michael (played by Peter Cilella), who is trying to help Chris (Vinny Curran) overcome his drug addiction, and Chris himself, who doesn't want that assistance and believes, with good reason, that Michael’s intentions are driven by selfishness. This works quite well, even though Curran seems a bit too heavy for the part of an addict, and what he experiences feels more like annoyance with Michael than withdrawal symptoms. Beyond the house, which Michael soon learns is located on a Native American reservation, there's a collection of odd characters who range from puzzling but harmless to openly ridiculous yet potentially dangerous. Following the conventions of Lovecraft’s work, Michael serves as the grounded protagonist, coming from an organized and practical background, who unintentionally crosses into a place where what’s unusual and less than human are commonplace rather than exceptional. Michael uncovers strange documents on the land surrounding the house: texts, photographs, and videos detailing disturbing past events and hinting at troubling things to come. The directors, Aaron Moorhead and Justin Benson (who also wrote the script), use the found footage style exceptionally well because we actually see someone discovering the recordings and reacting to them, and then we react to their reactions. I think this is a more effective method than simply showing us the supposed footage directly, which often feels incomplete by chance rather than design. The film’s main flaw – and it's a significant one if you value what lingers after watching—is that its creators are even more devoted to Lovecraftian themes than Lovecraft himself was. HPL’s sense of cosmic indifference translates better from the page to the screen, because mood can only carry you so far visually and audibly—and the mood Resolution leaves you in is unpleasant, due to a predictable, anticlimactic final shot that implies the evil will continue. I'm not suggesting a happy ending was necessary, but I do wonder if it’s too much to ask of a movie called Resolution to have an ending where the conflict is actually resolved. The frustrating thing is that this film already had a satisfying and releasing conclusion before that last shot, which feels like a deliberate insult to the audience.

Source on TMDB