In the polluted future where humans reside in elevated metropolises to escape the contaminated ground below, reports of unusual assaults on young women start to surface. Law enforcement finds itself ill-equipped to trace the origins of these invaders or halt their advances. Hope arrives in the form of a secretive protector armed with a formidable blade and clad in a striking outfit, driven by a commitment to righteousness. This savior must overcome her own distracting impulses to effectively defeat the emerging threats from the shadows.