Two drastically different sisters decide to come to terms with their difficult past by diving into a deep, dark Norwegian fjord. But the catharsis they hoped for is soon buried underneath a boulder—along with one of them. The other sister tries to save her in a race against time, as the air is getting thinner underneath the rock. If SLASH were to give an award for the steepest suspense curve this year—it would undoubtedly go to this deft, relentless, and in every sense of the word breathtaking outdoors thriller framed by the gorgeous Norwegian landscape.