High-Rise Invasion - S01

Sixteen-year-old Yuri Honjou is horrified when she sees a man's skull split open by an axe. Shaking with fear, she runs from the masked attacker-only to realize she's trapped inside an empty building where every door is locked. Frantically searching for an exit, she races to the rooftop, but the world outside is eerily lifeless, surrounded by silent skyscrapers. Just as despair sets in, she discovers her brother is also trapped in this strange place. Now, Yuri is determined to find him and escape. But the nightmare worsens. More masked killers lurk in the shadows, eager to torment their victims and indulge their twisted urges. As the danger grows, Yuri begins to wonder if she and her brother will ever make it out alive.