High-Rise Invasion (2021)

Yuri, a high school student, unexpectedly awakens on a rooftop in a surreal high-rise landscape. As she navigates this ominous realm, she witnesses a chilling murder by a masked assailant. Determined to survive and locate her missing brother, Yuri faces relentless threats from the sadistic Masks, who wield terrifying power, and from fellow survivors driven to madness by their grim circumstances. Survival becomes a harrowing journey as she battles both the monstrous foes and the darker instincts of those around her in this nightmarish urban labyrinth.