On the surface, the mountain town of Engelstatt, Austria is picture-perfect. It offers guests stunning views, fresh air, and the chance to experience an Alpine village untouched by time. For university student Jacob Liro, a school shooting survivor and aspiring artist, it is the perfect place to spend spring break with his classmates and a chance to hit the reset button on his life. What Jacob and his class don't know is that beneath its fairy-tale facade, something sinister lies in wait in the salt mines below the town—and horrors from Engelstatt's Nazi past threaten not only their lives and their sanity, but the entire world.