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Anyone know what movie this is?
>live action, practical effects, probably made pre-2000s
>scene in a normal office room with a single desk
>camera continually pans left through the wall to the adjacent offices
>each room gets more fucked up, office workers covered in blood, dead, etc
>last room has a couple of gory-looking monsters killing an office worker
>another monster rises up in front of the camera like a slow jumpscare