In the dimly lit corridors of a decaying high-rise, a group of night-shift cleaners stumble upon a horrifying secret that shatters their mundane existence. What begins as a routine job quickly spirals into a desperate fight for survival as the janitors uncover a conspiracy lurking behind the building's locked doors. Led by a haunted veteran worker who knows more than he lets on, the ragtag team must navigate a labyrinth of shadowy threats and psychological torment, where every mop closet hides a new danger and trust is a luxury none can afford. As the body count rises, the line between predator and prey blurs, forcing each character to confront their own dark pasts. This taut, atmospheric thriller weaves suspense with visceral dread, keeping audiences on edge as the janitors race against time to expose the truth before they become the next casualties of the night. With its claustrophobic setting and relentless pacing, the film delivers a gripping descent into madness where survival demands more than just cleaning up the mess.