Small scale isolationist horror with a great handling of atmosphere and enough tricks up its sleeve to make you think it’s any one of half a dozen different sorts of movie at any point in time.
Even a cursory summation of plot threatens to give away too much. A cabin. Some kids. Their step-mother, who is the sole survivor of a suicide cult. Some long creeping moments of dread and a few unnecessarily jarring and overly loud bursts that don’t really add much to the guessing game.
Overall: pretty tense, some good imagery and a climax you’ll either see coming a mile away or be completely blindsided by.
Good for a cold, rainy night.