Chris, Kirk, Eugene, Tupper and Butchy are bosom friends who serve in the ranks of the American army. The dark days of World War II will soon be over. In the meantime, the soldiers carry out the next task of the command - they are ordered to hold the French castle at any cost, previously occupied by the German command. Fighting comrades see this as an opportunity for respite and relaxation after long years of bloody battles. But suddenly strange events begin to occur, turning being in the castle into a perverse nightmare. They understand that they are not alone in the castle, but their current enemy is the worst of all that they have met on the battlefield. They make desperate attempts to leave this place, but otherworldly forces do not want to let them go ...