无界之环wujiezhihuan · HD中字

　　A pair of enemy soldiers stationed on a remote border in a vast featureless desert descend into a state of profound disorientation after forgetting which side of the border is which. As they grapple with their identities, loyalties, and the absurdity of their situation, their isolation slowly gives way to an unfathomable nightmare that will blur the line between friend and foe....