Finding your instincts to KILL on a remote Maine island
This is a life-or-death backwoods drama/adventure/horror in the tradition of "Deliverance" (1972), "The Edge" (1997), "Nightmare at Bittercreek" (1988) and "Backcountry" (2014). While it lacks the budget of the first two, it's at least as good as the latter two.
These types of flicks are about being backed into a corner in the wilderness and finding your instincts to survive at all costs, including your primitive rage to kill if necessary. This one's totally realistic and very well done, not to mention pleasantly streamlined.
7/10 for me