Seedance Korean Elevator Horror Sequence

Create an ultra-realistic 30-40 second Korean found-footage horror sequence inside a high-rise apartment building at 2:17 AM. A young Korean woman carrying grocery bags enters an empty elevator. An elderly security guard watches the CCTV monitors downstairs. The elevator begins climbing. Floor 8. The doors open. Nobody is there. She presses CLOSE. Just before the doors shut, a pale barefoot woman suddenly appears at the far end of the dark hallway. Doors close. Floor 11. They open again. The SAME woman is standing closer. The passenger becomes nervous and repeatedly presses CLOSE. The security guard notices something disturbing on CCTV, the passenger appears completely alone. The pale woman is invisible on his monitor. Floor 14. DING. Doors open. The pale woman is now standing directly outside, head lowered. The passenger freezes. The elevator doors begin closing. Suddenly an arm shoots between them. Doors reopen. The hallway is EMPTY. The woman desperately presses the lobby button. Instead, the elevator starts moving UP. 15...16...17... The building only has 16 floors. The display changes to "-". Lights shut off. Emergency lighting activates. Something begins scratching across the elevator ceiling. The woman slowly looks upward. A ceiling panel moves. She screams and runs when the doors suddenly open onto an unfinished concrete floor that shouldn't exist. Security guard races upstairs. The woman runs through the dark construction level while something crawls rapidly across the ceiling behind her. She reaches the stairwell. The creature drops behind her. She slams the fire door. Silence. The guard finally reaches her. Both stare through the tiny fire-door window. Nothing. Then the guard slowly notices the creature's reflection in the window. It is standing behind them. Camera violently turns. CUT TO BLACK. STYLE: hyper-realistic Korean apartment horror, believable CCTV/found-footage feeling, cold fluorescent lighting, cramped architecture, elevator mechanical sounds, realistic reflections, autofocus hunting, uncomfortable silence followed by sudden movement, no gore, no blood, no subtitles, no watermark, no obvious CGI.