I've had this one on the list for ages (since its release in 2010). Two blokes stuck in a meteorology station on an island in Chukotka, Russia (opposite Alaska). The younger one starts acting up for no good reason. I wonder if they really do have radioisotope thermoelectric generators still lying around out there. Initially quite slow, and then the plot gets a bit too horror/survival to care about. In two sittings. Some of the cinematography is gorgeous.